Home / 394,772.48-592,096.95-128,531.20

Finding the Fourth Proportional to 394,772.48, 592,096.95 and 128,531.20

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Solution

The fourth proportional to 394,772.48, 592,096.95 and 128,531.20 is: 192,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,772.48 : 592,096.95 = 128,531.20 : x
  2. Step 2: Convert to fraction form
    394,772.48/592,096.95 = 128,531.20/x
  3. Step 3: Cross multiply
    394,772.48x = 592,096.95 × 128,531.20
  4. Step 4: Simplify right side
    394,772.48x = 76,102,930,019.60
  5. Step 5: Solve for x
    x = 76,102,930,019.60/394,772.48
  6. Step 6: Final answer
    x = 192,776.69

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1.5x scale

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.