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Finding the Fourth Proportional to 664,530.30, 996,795.45 and 486,071.10

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Solution

The fourth proportional to 664,530.30, 996,795.45 and 486,071.10 is: 729,106.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,530.30 : 996,795.45 = 486,071.10 : x
  2. Step 2: Convert to fraction form
    664,530.30/996,795.45 = 486,071.10/x
  3. Step 3: Cross multiply
    664,530.30x = 996,795.45 × 486,071.10
  4. Step 4: Simplify right side
    664,530.30x = 484,513,460,856.50
  5. Step 5: Solve for x
    x = 484,513,460,856.50/664,530.30
  6. Step 6: Final answer
    x = 729,106.65

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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.