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Finding the Fourth Proportional to 638,502.10, 880,217.03 and 502,299.32

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Solution

The fourth proportional to 638,502.10, 880,217.03 and 502,299.32 is: 692,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,502.10 : 880,217.03 = 502,299.32 : x
  2. Step 2: Convert to fraction form
    638,502.10/880,217.03 = 502,299.32/x
  3. Step 3: Cross multiply
    638,502.10x = 880,217.03 × 502,299.32
  4. Step 4: Simplify right side
    638,502.10x = 442,132,412,476.08
  5. Step 5: Solve for x
    x = 442,132,412,476.08/638,502.10
  6. Step 6: Final answer
    x = 692,452.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.