Home / 1,560,129.20-2,152,937.07-871,806.72

Finding the Fourth Proportional to 1,560,129.20, 2,152,937.07 and 871,806.72

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Solution

The fourth proportional to 1,560,129.20, 2,152,937.07 and 871,806.72 is: 1,203,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,129.20 : 2,152,937.07 = 871,806.72 : x
  2. Step 2: Convert to fraction form
    1,560,129.20/2,152,937.07 = 871,806.72/x
  3. Step 3: Cross multiply
    1,560,129.20x = 2,152,937.07 × 871,806.72
  4. Step 4: Simplify right side
    1,560,129.20x = 1,876,945,007,381.49
  5. Step 5: Solve for x
    x = 1,876,945,007,381.49/1,560,129.20
  6. Step 6: Final answer
    x = 1,203,070.23

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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.