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Finding the Fourth Proportional to 497,479.28, 686,523.70 and 282,631.12

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Solution

The fourth proportional to 497,479.28, 686,523.70 and 282,631.12 is: 390,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,479.28 : 686,523.70 = 282,631.12 : x
  2. Step 2: Convert to fraction form
    497,479.28/686,523.70 = 282,631.12/x
  3. Step 3: Cross multiply
    497,479.28x = 686,523.70 × 282,631.12
  4. Step 4: Simplify right side
    497,479.28x = 194,032,962,237.54
  5. Step 5: Solve for x
    x = 194,032,962,237.54/497,479.28
  6. Step 6: Final answer
    x = 390,032.25

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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.