Home / 497,479.21-686,523.68-282,631.08

Finding the Fourth Proportional to 497,479.21, 686,523.68 and 282,631.08

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Solution

The fourth proportional to 497,479.21, 686,523.68 and 282,631.08 is: 390,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,479.21 : 686,523.68 = 282,631.08 : x
  2. Step 2: Convert to fraction form
    497,479.21/686,523.68 = 282,631.08/x
  3. Step 3: Cross multiply
    497,479.21x = 686,523.68 × 282,631.08
  4. Step 4: Simplify right side
    497,479.21x = 194,032,929,123.97
  5. Step 5: Solve for x
    x = 194,032,929,123.97/497,479.21
  6. Step 6: Final answer
    x = 390,032.24

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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.