Home / 876,007.98-1,208,781.23-513,348.71

Finding the Fourth Proportional to 876,007.98, 1,208,781.23 and 513,348.71

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Solution

The fourth proportional to 876,007.98, 1,208,781.23 and 513,348.71 is: 708,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,007.98 : 1,208,781.23 = 513,348.71 : x
  2. Step 2: Convert to fraction form
    876,007.98/1,208,781.23 = 513,348.71/x
  3. Step 3: Cross multiply
    876,007.98x = 1,208,781.23 × 513,348.71
  4. Step 4: Simplify right side
    876,007.98x = 620,526,276,482.06
  5. Step 5: Solve for x
    x = 620,526,276,482.06/876,007.98
  6. Step 6: Final answer
    x = 708,356.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.