Home / 487,911.60-731,492.20-247,828.24

Finding the Fourth Proportional to 487,911.60, 731,492.20 and 247,828.24

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Solution

The fourth proportional to 487,911.60, 731,492.20 and 247,828.24 is: 371,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,911.60 : 731,492.20 = 247,828.24 : x
  2. Step 2: Convert to fraction form
    487,911.60/731,492.20 = 247,828.24/x
  3. Step 3: Cross multiply
    487,911.60x = 731,492.20 × 247,828.24
  4. Step 4: Simplify right side
    487,911.60x = 181,284,424,499.73
  5. Step 5: Solve for x
    x = 181,284,424,499.73/487,911.60
  6. Step 6: Final answer
    x = 371,551.78

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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.