Home / 891,618.73-1,230,549.92-499,301.11

Finding the Fourth Proportional to 891,618.73, 1,230,549.92 and 499,301.11

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Solution

The fourth proportional to 891,618.73, 1,230,549.92 and 499,301.11 is: 689,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,618.73 : 1,230,549.92 = 499,301.11 : x
  2. Step 2: Convert to fraction form
    891,618.73/1,230,549.92 = 499,301.11/x
  3. Step 3: Cross multiply
    891,618.73x = 1,230,549.92 × 499,301.11
  4. Step 4: Simplify right side
    891,618.73x = 614,414,941,529.41
  5. Step 5: Solve for x
    x = 614,414,941,529.41/891,618.73
  6. Step 6: Final answer
    x = 689,100.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.