Home / 387,717.17-581,575.95-121,498.52

Finding the Fourth Proportional to 387,717.17, 581,575.95 and 121,498.52

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Solution

The fourth proportional to 387,717.17, 581,575.95 and 121,498.52 is: 182,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,717.17 : 581,575.95 = 121,498.52 : x
  2. Step 2: Convert to fraction form
    387,717.17/581,575.95 = 121,498.52/x
  3. Step 3: Cross multiply
    387,717.17x = 581,575.95 × 121,498.52
  4. Step 4: Simplify right side
    387,717.17x = 70,660,614,284.71
  5. Step 5: Solve for x
    x = 70,660,614,284.71/387,717.17
  6. Step 6: Final answer
    x = 182,247.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.