Home / 587,285.52-810,432.36-319,007.76

Finding the Fourth Proportional to 587,285.52, 810,432.36 and 319,007.76

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Solution

The fourth proportional to 587,285.52, 810,432.36 and 319,007.76 is: 440,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,285.52 : 810,432.36 = 319,007.76 : x
  2. Step 2: Convert to fraction form
    587,285.52/810,432.36 = 319,007.76/x
  3. Step 3: Cross multiply
    587,285.52x = 810,432.36 × 319,007.76
  4. Step 4: Simplify right side
    587,285.52x = 258,534,211,795.11
  5. Step 5: Solve for x
    x = 258,534,211,795.11/587,285.52
  6. Step 6: Final answer
    x = 440,218.94

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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.