Home / 497,981.52-746,962.56-142,987.68

Finding the Fourth Proportional to 497,981.52, 746,962.56 and 142,987.68

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Solution

The fourth proportional to 497,981.52, 746,962.56 and 142,987.68 is: 214,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,981.52 : 746,962.56 = 142,987.68 : x
  2. Step 2: Convert to fraction form
    497,981.52/746,962.56 = 142,987.68/x
  3. Step 3: Cross multiply
    497,981.52x = 746,962.56 × 142,987.68
  4. Step 4: Simplify right side
    497,981.52x = 106,806,443,501.26
  5. Step 5: Solve for x
    x = 106,806,443,501.26/497,981.52
  6. Step 6: Final answer
    x = 214,478.73

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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.