Home / 874,274.64-1,206,466.56-487,080.96

Finding the Fourth Proportional to 874,274.64, 1,206,466.56 and 487,080.96

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Solution

The fourth proportional to 874,274.64, 1,206,466.56 and 487,080.96 is: 672,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,274.64 : 1,206,466.56 = 487,080.96 : x
  2. Step 2: Convert to fraction form
    874,274.64/1,206,466.56 = 487,080.96/x
  3. Step 3: Cross multiply
    874,274.64x = 1,206,466.56 × 487,080.96
  4. Step 4: Simplify right side
    874,274.64x = 587,646,890,252.70
  5. Step 5: Solve for x
    x = 587,646,890,252.70/874,274.64
  6. Step 6: Final answer
    x = 672,153.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.