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Finding the Fourth Proportional to 749,367, 1,124,419.55 and 349,949.70

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Solution

The fourth proportional to 749,367, 1,124,419.55 and 349,949.70 is: 525,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,367 : 1,124,419.55 = 349,949.70 : x
  2. Step 2: Convert to fraction form
    749,367/1,124,419.55 = 349,949.70/x
  3. Step 3: Cross multiply
    749,367x = 1,124,419.55 × 349,949.70
  4. Step 4: Simplify right side
    749,367x = 393,490,282,446.89
  5. Step 5: Solve for x
    x = 393,490,282,446.89/749,367
  6. Step 6: Final answer
    x = 525,096.89

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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.