Home / 676,864.10-1,015,296.15-487,907.30

Finding the Fourth Proportional to 676,864.10, 1,015,296.15 and 487,907.30

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Solution

The fourth proportional to 676,864.10, 1,015,296.15 and 487,907.30 is: 731,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,864.10 : 1,015,296.15 = 487,907.30 : x
  2. Step 2: Convert to fraction form
    676,864.10/1,015,296.15 = 487,907.30/x
  3. Step 3: Cross multiply
    676,864.10x = 1,015,296.15 × 487,907.30
  4. Step 4: Simplify right side
    676,864.10x = 495,370,403,246.90
  5. Step 5: Solve for x
    x = 495,370,403,246.90/676,864.10
  6. Step 6: Final answer
    x = 731,860.95

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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.