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Finding the Fourth Proportional to 768,242.04, 1,060,182.06 and 428,703

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Solution

The fourth proportional to 768,242.04, 1,060,182.06 and 428,703 is: 591,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,242.04 : 1,060,182.06 = 428,703 : x
  2. Step 2: Convert to fraction form
    768,242.04/1,060,182.06 = 428,703/x
  3. Step 3: Cross multiply
    768,242.04x = 1,060,182.06 × 428,703
  4. Step 4: Simplify right side
    768,242.04x = 454,503,229,668.18
  5. Step 5: Solve for x
    x = 454,503,229,668.18/768,242.04
  6. Step 6: Final answer
    x = 591,614.63

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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.