Home / 1,289,644.35-1,931,500.50-748,560.57

Finding the Fourth Proportional to 1,289,644.35, 1,931,500.50 and 748,560.57

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Solution

The fourth proportional to 1,289,644.35, 1,931,500.50 and 748,560.57 is: 1,121,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,644.35 : 1,931,500.50 = 748,560.57 : x
  2. Step 2: Convert to fraction form
    1,289,644.35/1,931,500.50 = 748,560.57/x
  3. Step 3: Cross multiply
    1,289,644.35x = 1,931,500.50 × 748,560.57
  4. Step 4: Simplify right side
    1,289,644.35x = 1,445,845,115,235.29
  5. Step 5: Solve for x
    x = 1,445,845,115,235.29/1,289,644.35
  6. Step 6: Final answer
    x = 1,121,119.26

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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.