Home / 811,735.76-1,120,119.03-549,557.70

Finding the Fourth Proportional to 811,735.76, 1,120,119.03 and 549,557.70

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Solution

The fourth proportional to 811,735.76, 1,120,119.03 and 549,557.70 is: 758,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,735.76 : 1,120,119.03 = 549,557.70 : x
  2. Step 2: Convert to fraction form
    811,735.76/1,120,119.03 = 549,557.70/x
  3. Step 3: Cross multiply
    811,735.76x = 1,120,119.03 × 549,557.70
  4. Step 4: Simplify right side
    811,735.76x = 615,570,037,853.03
  5. Step 5: Solve for x
    x = 615,570,037,853.03/811,735.76
  6. Step 6: Final answer
    x = 758,337.96

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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.