Home / 781,754.29-1,078,839.18-437,581.66

Finding the Fourth Proportional to 781,754.29, 1,078,839.18 and 437,581.66

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Solution

The fourth proportional to 781,754.29, 1,078,839.18 and 437,581.66 is: 603,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,754.29 : 1,078,839.18 = 437,581.66 : x
  2. Step 2: Convert to fraction form
    781,754.29/1,078,839.18 = 437,581.66/x
  3. Step 3: Cross multiply
    781,754.29x = 1,078,839.18 × 437,581.66
  4. Step 4: Simplify right side
    781,754.29x = 472,080,233,863.24
  5. Step 5: Solve for x
    x = 472,080,233,863.24/781,754.29
  6. Step 6: Final answer
    x = 603,872.91

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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.