Home / 847,058.87-1,270,318.86-278,308.88

Finding the Fourth Proportional to 847,058.87, 1,270,318.86 and 278,308.88

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Solution

The fourth proportional to 847,058.87, 1,270,318.86 and 278,308.88 is: 417,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,058.87 : 1,270,318.86 = 278,308.88 : x
  2. Step 2: Convert to fraction form
    847,058.87/1,270,318.86 = 278,308.88/x
  3. Step 3: Cross multiply
    847,058.87x = 1,270,318.86 × 278,308.88
  4. Step 4: Simplify right side
    847,058.87x = 353,541,012,817.88
  5. Step 5: Solve for x
    x = 353,541,012,817.88/847,058.87
  6. Step 6: Final answer
    x = 417,374.79

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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.