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Finding the Fourth Proportional to 649,260.90, 973,891.35 and 491,796.90

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Solution

The fourth proportional to 649,260.90, 973,891.35 and 491,796.90 is: 737,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,260.90 : 973,891.35 = 491,796.90 : x
  2. Step 2: Convert to fraction form
    649,260.90/973,891.35 = 491,796.90/x
  3. Step 3: Cross multiply
    649,260.90x = 973,891.35 × 491,796.90
  4. Step 4: Simplify right side
    649,260.90x = 478,956,746,866.82
  5. Step 5: Solve for x
    x = 478,956,746,866.82/649,260.90
  6. Step 6: Final answer
    x = 737,695.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.