Home / 1,288,768.20-1,935,217.80-1,024,724.40

Finding the Fourth Proportional to 1,288,768.20, 1,935,217.80 and 1,024,724.40

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Solution

The fourth proportional to 1,288,768.20, 1,935,217.80 and 1,024,724.40 is: 1,538,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,768.20 : 1,935,217.80 = 1,024,724.40 : x
  2. Step 2: Convert to fraction form
    1,288,768.20/1,935,217.80 = 1,024,724.40/x
  3. Step 3: Cross multiply
    1,288,768.20x = 1,935,217.80 × 1,024,724.40
  4. Step 4: Simplify right side
    1,288,768.20x = 1,983,064,898,974.32
  5. Step 5: Solve for x
    x = 1,983,064,898,974.32/1,288,768.20
  6. Step 6: Final answer
    x = 1,538,728.92

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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.