Home / 753,398.20-1,130,243.10-220,936.60

Finding the Fourth Proportional to 753,398.20, 1,130,243.10 and 220,936.60

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Solution

The fourth proportional to 753,398.20, 1,130,243.10 and 220,936.60 is: 331,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,398.20 : 1,130,243.10 = 220,936.60 : x
  2. Step 2: Convert to fraction form
    753,398.20/1,130,243.10 = 220,936.60/x
  3. Step 3: Cross multiply
    753,398.20x = 1,130,243.10 × 220,936.60
  4. Step 4: Simplify right side
    753,398.20x = 249,712,067,687.46
  5. Step 5: Solve for x
    x = 249,712,067,687.46/753,398.20
  6. Step 6: Final answer
    x = 331,447.66

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1.5x scale

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.