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Finding the Fourth Proportional to 487,980.62, 732,029.97 and 172,372.94

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Solution

The fourth proportional to 487,980.62, 732,029.97 and 172,372.94 is: 258,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,980.62 : 732,029.97 = 172,372.94 : x
  2. Step 2: Convert to fraction form
    487,980.62/732,029.97 = 172,372.94/x
  3. Step 3: Cross multiply
    487,980.62x = 732,029.97 × 172,372.94
  4. Step 4: Simplify right side
    487,980.62x = 126,182,158,097.01
  5. Step 5: Solve for x
    x = 126,182,158,097.01/487,980.62
  6. Step 6: Final answer
    x = 258,580.27

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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.