Home / 487,957.26-731,964.59-188,439.41

Finding the Fourth Proportional to 487,957.26, 731,964.59 and 188,439.41

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Solution

The fourth proportional to 487,957.26, 731,964.59 and 188,439.41 is: 282,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,957.26 : 731,964.59 = 188,439.41 : x
  2. Step 2: Convert to fraction form
    487,957.26/731,964.59 = 188,439.41/x
  3. Step 3: Cross multiply
    487,957.26x = 731,964.59 × 188,439.41
  4. Step 4: Simplify right side
    487,957.26x = 137,930,970,878.47
  5. Step 5: Solve for x
    x = 137,930,970,878.47/487,957.26
  6. Step 6: Final answer
    x = 282,670.19

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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.