Home / 1,275,679.23-1,913,470.92-316,137.61

Finding the Fourth Proportional to 1,275,679.23, 1,913,470.92 and 316,137.61

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Solution

The fourth proportional to 1,275,679.23, 1,913,470.92 and 316,137.61 is: 474,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,679.23 : 1,913,470.92 = 316,137.61 : x
  2. Step 2: Convert to fraction form
    1,275,679.23/1,913,470.92 = 316,137.61/x
  3. Step 3: Cross multiply
    1,275,679.23x = 1,913,470.92 × 316,137.61
  4. Step 4: Simplify right side
    1,275,679.23x = 604,920,121,352.64
  5. Step 5: Solve for x
    x = 604,920,121,352.64/1,275,679.23
  6. Step 6: Final answer
    x = 474,194.54

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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.