Home / 753,456.75-1,130,194.47-220,988.77

Finding the Fourth Proportional to 753,456.75, 1,130,194.47 and 220,988.77

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Solution

The fourth proportional to 753,456.75, 1,130,194.47 and 220,988.77 is: 331,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,456.75 : 1,130,194.47 = 220,988.77 : x
  2. Step 2: Convert to fraction form
    753,456.75/1,130,194.47 = 220,988.77/x
  3. Step 3: Cross multiply
    753,456.75x = 1,130,194.47 × 220,988.77
  4. Step 4: Simplify right side
    753,456.75x = 249,760,288,059.12
  5. Step 5: Solve for x
    x = 249,760,288,059.12/753,456.75
  6. Step 6: Final answer
    x = 331,485.90

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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.