Home / 891,130.60-1,336,695.90-743,508.10

Finding the Fourth Proportional to 891,130.60, 1,336,695.90 and 743,508.10

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Solution

The fourth proportional to 891,130.60, 1,336,695.90 and 743,508.10 is: 1,115,262.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,130.60 : 1,336,695.90 = 743,508.10 : x
  2. Step 2: Convert to fraction form
    891,130.60/1,336,695.90 = 743,508.10/x
  3. Step 3: Cross multiply
    891,130.60x = 1,336,695.90 × 743,508.10
  4. Step 4: Simplify right side
    891,130.60x = 993,844,228,886.79
  5. Step 5: Solve for x
    x = 993,844,228,886.79/891,130.60
  6. Step 6: Final answer
    x = 1,115,262.15

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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.