Home / 728,937.43-1,005,809.06-422,943.66

Finding the Fourth Proportional to 728,937.43, 1,005,809.06 and 422,943.66

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Solution

The fourth proportional to 728,937.43, 1,005,809.06 and 422,943.66 is: 583,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,937.43 : 1,005,809.06 = 422,943.66 : x
  2. Step 2: Convert to fraction form
    728,937.43/1,005,809.06 = 422,943.66/x
  3. Step 3: Cross multiply
    728,937.43x = 1,005,809.06 × 422,943.66
  4. Step 4: Simplify right side
    728,937.43x = 425,400,566,154.92
  5. Step 5: Solve for x
    x = 425,400,566,154.92/728,937.43
  6. Step 6: Final answer
    x = 583,589.96

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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.