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Finding the Fourth Proportional to 891,679.05, 1,337,503.10 and 359,186.47

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Solution

The fourth proportional to 891,679.05, 1,337,503.10 and 359,186.47 is: 538,773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,679.05 : 1,337,503.10 = 359,186.47 : x
  2. Step 2: Convert to fraction form
    891,679.05/1,337,503.10 = 359,186.47/x
  3. Step 3: Cross multiply
    891,679.05x = 1,337,503.10 × 359,186.47
  4. Step 4: Simplify right side
    891,679.05x = 480,413,011,963.37
  5. Step 5: Solve for x
    x = 480,413,011,963.37/891,679.05
  6. Step 6: Final answer
    x = 538,773.47

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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.