Home / 891,132.80-1,336,699.20-260,110.40

Finding the Fourth Proportional to 891,132.80, 1,336,699.20 and 260,110.40

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Solution

The fourth proportional to 891,132.80, 1,336,699.20 and 260,110.40 is: 390,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,132.80 : 1,336,699.20 = 260,110.40 : x
  2. Step 2: Convert to fraction form
    891,132.80/1,336,699.20 = 260,110.40/x
  3. Step 3: Cross multiply
    891,132.80x = 1,336,699.20 × 260,110.40
  4. Step 4: Simplify right side
    891,132.80x = 347,689,363,591.68
  5. Step 5: Solve for x
    x = 347,689,363,591.68/891,132.80
  6. Step 6: Final answer
    x = 390,165.60

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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.