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Finding the Fourth Proportional to 519,928.30, 780,001.80 and 295,104.70

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Solution

The fourth proportional to 519,928.30, 780,001.80 and 295,104.70 is: 442,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,928.30 : 780,001.80 = 295,104.70 : x
  2. Step 2: Convert to fraction form
    519,928.30/780,001.80 = 295,104.70/x
  3. Step 3: Cross multiply
    519,928.30x = 780,001.80 × 295,104.70
  4. Step 4: Simplify right side
    519,928.30x = 230,182,197,188.46
  5. Step 5: Solve for x
    x = 230,182,197,188.46/519,928.30
  6. Step 6: Final answer
    x = 442,719.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.