Home / 1,272,834.56-1,909,251.12-374,283.76

Finding the Fourth Proportional to 1,272,834.56, 1,909,251.12 and 374,283.76

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Solution

The fourth proportional to 1,272,834.56, 1,909,251.12 and 374,283.76 is: 561,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,834.56 : 1,909,251.12 = 374,283.76 : x
  2. Step 2: Convert to fraction form
    1,272,834.56/1,909,251.12 = 374,283.76/x
  3. Step 3: Cross multiply
    1,272,834.56x = 1,909,251.12 × 374,283.76
  4. Step 4: Simplify right side
    1,272,834.56x = 714,601,687,977.81
  5. Step 5: Solve for x
    x = 714,601,687,977.81/1,272,834.56
  6. Step 6: Final answer
    x = 561,425.43

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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.