Home / 769,719.60-1,152,829.80-395,305.20

Finding the Fourth Proportional to 769,719.60, 1,152,829.80 and 395,305.20

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Solution

The fourth proportional to 769,719.60, 1,152,829.80 and 395,305.20 is: 592,059.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,719.60 : 1,152,829.80 = 395,305.20 : x
  2. Step 2: Convert to fraction form
    769,719.60/1,152,829.80 = 395,305.20/x
  3. Step 3: Cross multiply
    769,719.60x = 1,152,829.80 × 395,305.20
  4. Step 4: Simplify right side
    769,719.60x = 455,719,614,654.96
  5. Step 5: Solve for x
    x = 455,719,614,654.96/769,719.60
  6. Step 6: Final answer
    x = 592,059.26

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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.