Home / 1,238,731.20-1,857,659.40-440,038.80

Finding the Fourth Proportional to 1,238,731.20, 1,857,659.40 and 440,038.80

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Solution

The fourth proportional to 1,238,731.20, 1,857,659.40 and 440,038.80 is: 659,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,731.20 : 1,857,659.40 = 440,038.80 : x
  2. Step 2: Convert to fraction form
    1,238,731.20/1,857,659.40 = 440,038.80/x
  3. Step 3: Cross multiply
    1,238,731.20x = 1,857,659.40 × 440,038.80
  4. Step 4: Simplify right side
    1,238,731.20x = 817,442,213,184.72
  5. Step 5: Solve for x
    x = 817,442,213,184.72/1,238,731.20
  6. Step 6: Final answer
    x = 659,902.82

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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.