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Finding the Fourth Proportional to 485,825.60, 730,293.60 and 346,548.80

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Solution

The fourth proportional to 485,825.60, 730,293.60 and 346,548.80 is: 520,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,825.60 : 730,293.60 = 346,548.80 : x
  2. Step 2: Convert to fraction form
    485,825.60/730,293.60 = 346,548.80/x
  3. Step 3: Cross multiply
    485,825.60x = 730,293.60 × 346,548.80
  4. Step 4: Simplify right side
    485,825.60x = 253,082,370,727.68
  5. Step 5: Solve for x
    x = 253,082,370,727.68/485,825.60
  6. Step 6: Final answer
    x = 520,932.55

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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.