Home / 1,288,772.20-1,935,223.80-1,024,728.40

Finding the Fourth Proportional to 1,288,772.20, 1,935,223.80 and 1,024,728.40

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Solution

The fourth proportional to 1,288,772.20, 1,935,223.80 and 1,024,728.40 is: 1,538,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,772.20 : 1,935,223.80 = 1,024,728.40 : x
  2. Step 2: Convert to fraction form
    1,288,772.20/1,935,223.80 = 1,024,728.40/x
  3. Step 3: Cross multiply
    1,288,772.20x = 1,935,223.80 × 1,024,728.40
  4. Step 4: Simplify right side
    1,288,772.20x = 1,983,078,788,215.92
  5. Step 5: Solve for x
    x = 1,983,078,788,215.92/1,288,772.20
  6. Step 6: Final answer
    x = 1,538,734.92

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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.