Home / 753,486.30-1,130,120.10-220,951.80

Finding the Fourth Proportional to 753,486.30, 1,130,120.10 and 220,951.80

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Solution

The fourth proportional to 753,486.30, 1,130,120.10 and 220,951.80 is: 331,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,486.30 : 1,130,120.10 = 220,951.80 : x
  2. Step 2: Convert to fraction form
    753,486.30/1,130,120.10 = 220,951.80/x
  3. Step 3: Cross multiply
    753,486.30x = 1,130,120.10 × 220,951.80
  4. Step 4: Simplify right side
    753,486.30x = 249,702,070,311.18
  5. Step 5: Solve for x
    x = 249,702,070,311.18/753,486.30
  6. Step 6: Final answer
    x = 331,395.63

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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.