Home / 788,862.60-1,182,419.10-434,131.20

Finding the Fourth Proportional to 788,862.60, 1,182,419.10 and 434,131.20

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Solution

The fourth proportional to 788,862.60, 1,182,419.10 and 434,131.20 is: 650,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,862.60 : 1,182,419.10 = 434,131.20 : x
  2. Step 2: Convert to fraction form
    788,862.60/1,182,419.10 = 434,131.20/x
  3. Step 3: Cross multiply
    788,862.60x = 1,182,419.10 × 434,131.20
  4. Step 4: Simplify right side
    788,862.60x = 513,325,022,785.92
  5. Step 5: Solve for x
    x = 513,325,022,785.92/788,862.60
  6. Step 6: Final answer
    x = 650,715.38

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Double scale
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Similar ratio
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1.5x scale

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.