Home / 458,412.39-687,623.33-138,566.91

Finding the Fourth Proportional to 458,412.39, 687,623.33 and 138,566.91

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Solution

The fourth proportional to 458,412.39, 687,623.33 and 138,566.91 is: 207,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,412.39 : 687,623.33 = 138,566.91 : x
  2. Step 2: Convert to fraction form
    458,412.39/687,623.33 = 138,566.91/x
  3. Step 3: Cross multiply
    458,412.39x = 687,623.33 × 138,566.91
  4. Step 4: Simplify right side
    458,412.39x = 95,281,839,389.18
  5. Step 5: Solve for x
    x = 95,281,839,389.18/458,412.39
  6. Step 6: Final answer
    x = 207,851.80

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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.