Home / 744,686.76-1,027,672.20-405,157.44

Finding the Fourth Proportional to 744,686.76, 1,027,672.20 and 405,157.44

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Solution

The fourth proportional to 744,686.76, 1,027,672.20 and 405,157.44 is: 559,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,686.76 : 1,027,672.20 = 405,157.44 : x
  2. Step 2: Convert to fraction form
    744,686.76/1,027,672.20 = 405,157.44/x
  3. Step 3: Cross multiply
    744,686.76x = 1,027,672.20 × 405,157.44
  4. Step 4: Simplify right side
    744,686.76x = 416,369,037,711.17
  5. Step 5: Solve for x
    x = 416,369,037,711.17/744,686.76
  6. Step 6: Final answer
    x = 559,119.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.