Home / 874,434.35-1,206,687.54-487,229.76

Finding the Fourth Proportional to 874,434.35, 1,206,687.54 and 487,229.76

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Solution

The fourth proportional to 874,434.35, 1,206,687.54 and 487,229.76 is: 672,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,434.35 : 1,206,687.54 = 487,229.76 : x
  2. Step 2: Convert to fraction form
    874,434.35/1,206,687.54 = 487,229.76/x
  3. Step 3: Cross multiply
    874,434.35x = 1,206,687.54 × 487,229.76
  4. Step 4: Simplify right side
    874,434.35x = 587,934,080,509.19
  5. Step 5: Solve for x
    x = 587,934,080,509.19/874,434.35
  6. Step 6: Final answer
    x = 672,359.31

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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.