Home / 1,306,468.91-1,959,702.64-407,987.65

Finding the Fourth Proportional to 1,306,468.91, 1,959,702.64 and 407,987.65

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Solution

The fourth proportional to 1,306,468.91, 1,959,702.64 and 407,987.65 is: 611,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,468.91 : 1,959,702.64 = 407,987.65 : x
  2. Step 2: Convert to fraction form
    1,306,468.91/1,959,702.64 = 407,987.65/x
  3. Step 3: Cross multiply
    1,306,468.91x = 1,959,702.64 × 407,987.65
  4. Step 4: Simplify right side
    1,306,468.91x = 799,534,465,198.73
  5. Step 5: Solve for x
    x = 799,534,465,198.73/1,306,468.91
  6. Step 6: Final answer
    x = 611,981.24

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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.