Home / 487,565.34-672,983.19-283,664.22

Finding the Fourth Proportional to 487,565.34, 672,983.19 and 283,664.22

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Solution

The fourth proportional to 487,565.34, 672,983.19 and 283,664.22 is: 391,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,565.34 : 672,983.19 = 283,664.22 : x
  2. Step 2: Convert to fraction form
    487,565.34/672,983.19 = 283,664.22/x
  3. Step 3: Cross multiply
    487,565.34x = 672,983.19 × 283,664.22
  4. Step 4: Simplify right side
    487,565.34x = 190,901,251,664.46
  5. Step 5: Solve for x
    x = 190,901,251,664.46/487,565.34
  6. Step 6: Final answer
    x = 391,539.83

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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.