Home / 838,909.37-1,257,387.94-479,332.11

Finding the Fourth Proportional to 838,909.37, 1,257,387.94 and 479,332.11

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Solution

The fourth proportional to 838,909.37, 1,257,387.94 and 479,332.11 is: 718,440.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,909.37 : 1,257,387.94 = 479,332.11 : x
  2. Step 2: Convert to fraction form
    838,909.37/1,257,387.94 = 479,332.11/x
  3. Step 3: Cross multiply
    838,909.37x = 1,257,387.94 × 479,332.11
  4. Step 4: Simplify right side
    838,909.37x = 602,706,419,683.12
  5. Step 5: Solve for x
    x = 602,706,419,683.12/838,909.37
  6. Step 6: Final answer
    x = 718,440.44

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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.