Home / 865,964.16-1,194,254.16-721,250.40

Finding the Fourth Proportional to 865,964.16, 1,194,254.16 and 721,250.40

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Solution

The fourth proportional to 865,964.16, 1,194,254.16 and 721,250.40 is: 994,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,964.16 : 1,194,254.16 = 721,250.40 : x
  2. Step 2: Convert to fraction form
    865,964.16/1,194,254.16 = 721,250.40/x
  3. Step 3: Cross multiply
    865,964.16x = 1,194,254.16 × 721,250.40
  4. Step 4: Simplify right side
    865,964.16x = 861,356,290,601.66
  5. Step 5: Solve for x
    x = 861,356,290,601.66/865,964.16
  6. Step 6: Final answer
    x = 994,678.91

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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.