Home / 677,380.13-1,013,952.71-437,172.95

Finding the Fourth Proportional to 677,380.13, 1,013,952.71 and 437,172.95

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Solution

The fourth proportional to 677,380.13, 1,013,952.71 and 437,172.95 is: 654,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,380.13 : 1,013,952.71 = 437,172.95 : x
  2. Step 2: Convert to fraction form
    677,380.13/1,013,952.71 = 437,172.95/x
  3. Step 3: Cross multiply
    677,380.13x = 1,013,952.71 × 437,172.95
  4. Step 4: Simplify right side
    677,380.13x = 443,272,697,391.20
  5. Step 5: Solve for x
    x = 443,272,697,391.20/677,380.13
  6. Step 6: Final answer
    x = 654,392.83

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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.