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Finding the Fourth Proportional to 497,264.74, 686,226.14 and 282,404.76

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Solution

The fourth proportional to 497,264.74, 686,226.14 and 282,404.76 is: 389,719.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,264.74 : 686,226.14 = 282,404.76 : x
  2. Step 2: Convert to fraction form
    497,264.74/686,226.14 = 282,404.76/x
  3. Step 3: Cross multiply
    497,264.74x = 686,226.14 × 282,404.76
  4. Step 4: Simplify right side
    497,264.74x = 193,793,528,372.43
  5. Step 5: Solve for x
    x = 193,793,528,372.43/497,264.74
  6. Step 6: Final answer
    x = 389,719.02

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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.