Home / 591,217.61-815,880.27-319,285.48

Finding the Fourth Proportional to 591,217.61, 815,880.27 and 319,285.48

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Solution

The fourth proportional to 591,217.61, 815,880.27 and 319,285.48 is: 440,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,217.61 : 815,880.27 = 319,285.48 : x
  2. Step 2: Convert to fraction form
    591,217.61/815,880.27 = 319,285.48/x
  3. Step 3: Cross multiply
    591,217.61x = 815,880.27 × 319,285.48
  4. Step 4: Simplify right side
    591,217.61x = 260,498,717,953.65
  5. Step 5: Solve for x
    x = 260,498,717,953.65/591,217.61
  6. Step 6: Final answer
    x = 440,613.94

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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.