Home / 987,971.60-1,482,044.88-278,005.79

Finding the Fourth Proportional to 987,971.60, 1,482,044.88 and 278,005.79

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Solution

The fourth proportional to 987,971.60, 1,482,044.88 and 278,005.79 is: 417,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,971.60 : 1,482,044.88 = 278,005.79 : x
  2. Step 2: Convert to fraction form
    987,971.60/1,482,044.88 = 278,005.79/x
  3. Step 3: Cross multiply
    987,971.60x = 1,482,044.88 × 278,005.79
  4. Step 4: Simplify right side
    987,971.60x = 412,017,062,427.49
  5. Step 5: Solve for x
    x = 412,017,062,427.49/987,971.60
  6. Step 6: Final answer
    x = 417,033.30

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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.