Home / 497,920.14-687,126.60-283,060.20

Finding the Fourth Proportional to 497,920.14, 687,126.60 and 283,060.20

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Solution

The fourth proportional to 497,920.14, 687,126.60 and 283,060.20 is: 390,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,920.14 : 687,126.60 = 283,060.20 : x
  2. Step 2: Convert to fraction form
    497,920.14/687,126.60 = 283,060.20/x
  3. Step 3: Cross multiply
    497,920.14x = 687,126.60 × 283,060.20
  4. Step 4: Simplify right side
    497,920.14x = 194,498,192,821.32
  5. Step 5: Solve for x
    x = 194,498,192,821.32/497,920.14
  6. Step 6: Final answer
    x = 390,621.26

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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.