Home / 1,228,193.60-1,842,290.40-871,275.20

Finding the Fourth Proportional to 1,228,193.60, 1,842,290.40 and 871,275.20

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Solution

The fourth proportional to 1,228,193.60, 1,842,290.40 and 871,275.20 is: 1,306,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,193.60 : 1,842,290.40 = 871,275.20 : x
  2. Step 2: Convert to fraction form
    1,228,193.60/1,842,290.40 = 871,275.20/x
  3. Step 3: Cross multiply
    1,228,193.60x = 1,842,290.40 × 871,275.20
  4. Step 4: Simplify right side
    1,228,193.60x = 1,605,141,936,718.08
  5. Step 5: Solve for x
    x = 1,605,141,936,718.08/1,228,193.60
  6. Step 6: Final answer
    x = 1,306,912.80

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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.