Home / 891,132.60-1,336,698.90-743,510.10

Finding the Fourth Proportional to 891,132.60, 1,336,698.90 and 743,510.10

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Solution

The fourth proportional to 891,132.60, 1,336,698.90 and 743,510.10 is: 1,115,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,132.60 : 1,336,698.90 = 743,510.10 : x
  2. Step 2: Convert to fraction form
    891,132.60/1,336,698.90 = 743,510.10/x
  3. Step 3: Cross multiply
    891,132.60x = 1,336,698.90 × 743,510.10
  4. Step 4: Simplify right side
    891,132.60x = 993,849,132,808.89
  5. Step 5: Solve for x
    x = 993,849,132,808.89/891,132.60
  6. Step 6: Final answer
    x = 1,115,265.15

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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.