Home / 385,419.46-577,985.55-132,629.26

Finding the Fourth Proportional to 385,419.46, 577,985.55 and 132,629.26

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Solution

The fourth proportional to 385,419.46, 577,985.55 and 132,629.26 is: 198,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,419.46 : 577,985.55 = 132,629.26 : x
  2. Step 2: Convert to fraction form
    385,419.46/577,985.55 = 132,629.26/x
  3. Step 3: Cross multiply
    385,419.46x = 577,985.55 × 132,629.26
  4. Step 4: Simplify right side
    385,419.46x = 76,657,793,844.87
  5. Step 5: Solve for x
    x = 76,657,793,844.87/385,419.46
  6. Step 6: Final answer
    x = 198,894.46

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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.