Home / 750,311.91-1,035,487.94-428,029.11

Finding the Fourth Proportional to 750,311.91, 1,035,487.94 and 428,029.11

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Solution

The fourth proportional to 750,311.91, 1,035,487.94 and 428,029.11 is: 590,712.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,311.91 : 1,035,487.94 = 428,029.11 : x
  2. Step 2: Convert to fraction form
    750,311.91/1,035,487.94 = 428,029.11/x
  3. Step 3: Cross multiply
    750,311.91x = 1,035,487.94 × 428,029.11
  4. Step 4: Simplify right side
    750,311.91x = 443,218,979,233.79
  5. Step 5: Solve for x
    x = 443,218,979,233.79/750,311.91
  6. Step 6: Final answer
    x = 590,712.97

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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.