Home / 871,271.20-1,306,906.80-516,102.40

Finding the Fourth Proportional to 871,271.20, 1,306,906.80 and 516,102.40

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Solution

The fourth proportional to 871,271.20, 1,306,906.80 and 516,102.40 is: 774,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,271.20 : 1,306,906.80 = 516,102.40 : x
  2. Step 2: Convert to fraction form
    871,271.20/1,306,906.80 = 516,102.40/x
  3. Step 3: Cross multiply
    871,271.20x = 1,306,906.80 × 516,102.40
  4. Step 4: Simplify right side
    871,271.20x = 674,497,736,056.32
  5. Step 5: Solve for x
    x = 674,497,736,056.32/871,271.20
  6. Step 6: Final answer
    x = 774,153.60

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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.