Home / 871,889.40-1,203,616.13-581,990.81

Finding the Fourth Proportional to 871,889.40, 1,203,616.13 and 581,990.81

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Solution

The fourth proportional to 871,889.40, 1,203,616.13 and 581,990.81 is: 803,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,889.40 : 1,203,616.13 = 581,990.81 : x
  2. Step 2: Convert to fraction form
    871,889.40/1,203,616.13 = 581,990.81/x
  3. Step 3: Cross multiply
    871,889.40x = 1,203,616.13 × 581,990.81
  4. Step 4: Simplify right side
    871,889.40x = 700,493,517,499.73
  5. Step 5: Solve for x
    x = 700,493,517,499.73/871,889.40
  6. Step 6: Final answer
    x = 803,420.16

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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.