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Finding the Fourth Proportional to 560,854.72, 773,999.04 and 319,173.76

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Solution

The fourth proportional to 560,854.72, 773,999.04 and 319,173.76 is: 440,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,854.72 : 773,999.04 = 319,173.76 : x
  2. Step 2: Convert to fraction form
    560,854.72/773,999.04 = 319,173.76/x
  3. Step 3: Cross multiply
    560,854.72x = 773,999.04 × 319,173.76
  4. Step 4: Simplify right side
    560,854.72x = 247,040,183,833.19
  5. Step 5: Solve for x
    x = 247,040,183,833.19/560,854.72
  6. Step 6: Final answer
    x = 440,470.90

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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.