Home / 871,154.64-1,202,207.40-489,173.22

Finding the Fourth Proportional to 871,154.64, 1,202,207.40 and 489,173.22

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Solution

The fourth proportional to 871,154.64, 1,202,207.40 and 489,173.22 is: 675,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,154.64 : 1,202,207.40 = 489,173.22 : x
  2. Step 2: Convert to fraction form
    871,154.64/1,202,207.40 = 489,173.22/x
  3. Step 3: Cross multiply
    871,154.64x = 1,202,207.40 × 489,173.22
  4. Step 4: Simplify right side
    871,154.64x = 588,087,664,965.83
  5. Step 5: Solve for x
    x = 588,087,664,965.83/871,154.64
  6. Step 6: Final answer
    x = 675,066.90

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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.