Home / 394,872.27-592,307.95-128,632.36

Finding the Fourth Proportional to 394,872.27, 592,307.95 and 128,632.36

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Solution

The fourth proportional to 394,872.27, 592,307.95 and 128,632.36 is: 192,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,872.27 : 592,307.95 = 128,632.36 : x
  2. Step 2: Convert to fraction form
    394,872.27/592,307.95 = 128,632.36/x
  3. Step 3: Cross multiply
    394,872.27x = 592,307.95 × 128,632.36
  4. Step 4: Simplify right side
    394,872.27x = 76,189,969,455.26
  5. Step 5: Solve for x
    x = 76,189,969,455.26/394,872.27
  6. Step 6: Final answer
    x = 192,948.39

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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.