Home / 851,569.91-1,275,908.88-513,901.02

Finding the Fourth Proportional to 851,569.91, 1,275,908.88 and 513,901.02

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Solution

The fourth proportional to 851,569.91, 1,275,908.88 and 513,901.02 is: 769,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,569.91 : 1,275,908.88 = 513,901.02 : x
  2. Step 2: Convert to fraction form
    851,569.91/1,275,908.88 = 513,901.02/x
  3. Step 3: Cross multiply
    851,569.91x = 1,275,908.88 × 513,901.02
  4. Step 4: Simplify right side
    851,569.91x = 655,690,874,859.06
  5. Step 5: Solve for x
    x = 655,690,874,859.06/851,569.91
  6. Step 6: Final answer
    x = 769,978.92

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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.