Home / 1,282,306.12-1,920,931.52-1,042,690.48

Finding the Fourth Proportional to 1,282,306.12, 1,920,931.52 and 1,042,690.48

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Solution

The fourth proportional to 1,282,306.12, 1,920,931.52 and 1,042,690.48 is: 1,561,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,306.12 : 1,920,931.52 = 1,042,690.48 : x
  2. Step 2: Convert to fraction form
    1,282,306.12/1,920,931.52 = 1,042,690.48/x
  3. Step 3: Cross multiply
    1,282,306.12x = 1,920,931.52 × 1,042,690.48
  4. Step 4: Simplify right side
    1,282,306.12x = 2,002,937,008,635.93
  5. Step 5: Solve for x
    x = 2,002,937,008,635.93/1,282,306.12
  6. Step 6: Final answer
    x = 1,561,980.39

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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.