Home / 474,939.48-712,446.24-137,985.60

Finding the Fourth Proportional to 474,939.48, 712,446.24 and 137,985.60

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Solution

The fourth proportional to 474,939.48, 712,446.24 and 137,985.60 is: 206,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,939.48 : 712,446.24 = 137,985.60 : x
  2. Step 2: Convert to fraction form
    474,939.48/712,446.24 = 137,985.60/x
  3. Step 3: Cross multiply
    474,939.48x = 712,446.24 × 137,985.60
  4. Step 4: Simplify right side
    474,939.48x = 98,307,321,894.14
  5. Step 5: Solve for x
    x = 98,307,321,894.14/474,939.48
  6. Step 6: Final answer
    x = 206,989.16

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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.