Home / 679,141.20-937,231.64-373,215.28

Finding the Fourth Proportional to 679,141.20, 937,231.64 and 373,215.28

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Solution

The fourth proportional to 679,141.20, 937,231.64 and 373,215.28 is: 515,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,141.20 : 937,231.64 = 373,215.28 : x
  2. Step 2: Convert to fraction form
    679,141.20/937,231.64 = 373,215.28/x
  3. Step 3: Cross multiply
    679,141.20x = 937,231.64 × 373,215.28
  4. Step 4: Simplify right side
    679,141.20x = 349,789,168,947.46
  5. Step 5: Solve for x
    x = 349,789,168,947.46/679,141.20
  6. Step 6: Final answer
    x = 515,046.31

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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.