Home / 1,247,766.40-1,871,995.20-827,862.40

Finding the Fourth Proportional to 1,247,766.40, 1,871,995.20 and 827,862.40

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Solution

The fourth proportional to 1,247,766.40, 1,871,995.20 and 827,862.40 is: 1,242,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,766.40 : 1,871,995.20 = 827,862.40 : x
  2. Step 2: Convert to fraction form
    1,247,766.40/1,871,995.20 = 827,862.40/x
  3. Step 3: Cross multiply
    1,247,766.40x = 1,871,995.20 × 827,862.40
  4. Step 4: Simplify right side
    1,247,766.40x = 1,549,754,439,060.48
  5. Step 5: Solve for x
    x = 1,549,754,439,060.48/1,247,766.40
  6. Step 6: Final answer
    x = 1,242,022.90

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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.