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Finding the Fourth Proportional to 750,907.67, 1,129,557.89 and 680,677.22

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Solution

The fourth proportional to 750,907.67, 1,129,557.89 and 680,677.22 is: 1,023,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,907.67 : 1,129,557.89 = 680,677.22 : x
  2. Step 2: Convert to fraction form
    750,907.67/1,129,557.89 = 680,677.22/x
  3. Step 3: Cross multiply
    750,907.67x = 1,129,557.89 × 680,677.22
  4. Step 4: Simplify right side
    750,907.67x = 768,864,328,919.85
  5. Step 5: Solve for x
    x = 768,864,328,919.85/750,907.67
  6. Step 6: Final answer
    x = 1,023,913.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.