Home / 502,972.40-694,043.74-288,099.65

Finding the Fourth Proportional to 502,972.40, 694,043.74 and 288,099.65

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Solution

The fourth proportional to 502,972.40, 694,043.74 and 288,099.65 is: 397,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,972.40 : 694,043.74 = 288,099.65 : x
  2. Step 2: Convert to fraction form
    502,972.40/694,043.74 = 288,099.65/x
  3. Step 3: Cross multiply
    502,972.40x = 694,043.74 × 288,099.65
  4. Step 4: Simplify right side
    502,972.40x = 199,953,760,673.93
  5. Step 5: Solve for x
    x = 199,953,760,673.93/502,972.40
  6. Step 6: Final answer
    x = 397,544.20

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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.