Home / 871,243.20-1,306,864.80-516,074.40

Finding the Fourth Proportional to 871,243.20, 1,306,864.80 and 516,074.40

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Solution

The fourth proportional to 871,243.20, 1,306,864.80 and 516,074.40 is: 774,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,243.20 : 1,306,864.80 = 516,074.40 : x
  2. Step 2: Convert to fraction form
    871,243.20/1,306,864.80 = 516,074.40/x
  3. Step 3: Cross multiply
    871,243.20x = 1,306,864.80 × 516,074.40
  4. Step 4: Simplify right side
    871,243.20x = 674,439,467,541.12
  5. Step 5: Solve for x
    x = 674,439,467,541.12/871,243.20
  6. Step 6: Final answer
    x = 774,111.60

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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.