Home / 399,032.40-598,631.80-132,875.60

Finding the Fourth Proportional to 399,032.40, 598,631.80 and 132,875.60

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Solution

The fourth proportional to 399,032.40, 598,631.80 and 132,875.60 is: 199,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,032.40 : 598,631.80 = 132,875.60 : x
  2. Step 2: Convert to fraction form
    399,032.40/598,631.80 = 132,875.60/x
  3. Step 3: Cross multiply
    399,032.40x = 598,631.80 × 132,875.60
  4. Step 4: Simplify right side
    399,032.40x = 79,543,559,604.08
  5. Step 5: Solve for x
    x = 79,543,559,604.08/399,032.40
  6. Step 6: Final answer
    x = 199,341.11

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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.