Home / 891,138.80-1,336,708.20-849,666.80

Finding the Fourth Proportional to 891,138.80, 1,336,708.20 and 849,666.80

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Solution

The fourth proportional to 891,138.80, 1,336,708.20 and 849,666.80 is: 1,274,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,138.80 : 1,336,708.20 = 849,666.80 : x
  2. Step 2: Convert to fraction form
    891,138.80/1,336,708.20 = 849,666.80/x
  3. Step 3: Cross multiply
    891,138.80x = 1,336,708.20 × 849,666.80
  4. Step 4: Simplify right side
    891,138.80x = 1,135,756,578,827.76
  5. Step 5: Solve for x
    x = 1,135,756,578,827.76/891,138.80
  6. Step 6: Final answer
    x = 1,274,500.20

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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.