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Finding the Fourth Proportional to 649,201.40, 973,802.10 and 491,737.40

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Solution

The fourth proportional to 649,201.40, 973,802.10 and 491,737.40 is: 737,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,201.40 : 973,802.10 = 491,737.40 : x
  2. Step 2: Convert to fraction form
    649,201.40/973,802.10 = 491,737.40/x
  3. Step 3: Cross multiply
    649,201.40x = 973,802.10 × 491,737.40
  4. Step 4: Simplify right side
    649,201.40x = 478,854,912,768.54
  5. Step 5: Solve for x
    x = 478,854,912,768.54/649,201.40
  6. Step 6: Final answer
    x = 737,606.10

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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.