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Finding the Fourth Proportional to 662,403.38, 990,552.99 and 491,946.98

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Solution

The fourth proportional to 662,403.38, 990,552.99 and 491,946.98 is: 735,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,403.38 : 990,552.99 = 491,946.98 : x
  2. Step 2: Convert to fraction form
    662,403.38/990,552.99 = 491,946.98/x
  3. Step 3: Cross multiply
    662,403.38x = 990,552.99 × 491,946.98
  4. Step 4: Simplify right side
    662,403.38x = 487,299,551,960.47
  5. Step 5: Solve for x
    x = 487,299,551,960.47/662,403.38
  6. Step 6: Final answer
    x = 735,653.78

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Double scale
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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.