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Finding the Fourth Proportional to 1,438,608, 1,985,279.04 and 802,704

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Solution

The fourth proportional to 1,438,608, 1,985,279.04 and 802,704 is: 1,107,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,608 : 1,985,279.04 = 802,704 : x
  2. Step 2: Convert to fraction form
    1,438,608/1,985,279.04 = 802,704/x
  3. Step 3: Cross multiply
    1,438,608x = 1,985,279.04 × 802,704
  4. Step 4: Simplify right side
    1,438,608x = 1,593,591,426,524.16
  5. Step 5: Solve for x
    x = 1,593,591,426,524.16/1,438,608
  6. Step 6: Final answer
    x = 1,107,731.52

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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.