Home / 753,156.36-1,129,743.72-220,688.16

Finding the Fourth Proportional to 753,156.36, 1,129,743.72 and 220,688.16

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Solution

The fourth proportional to 753,156.36, 1,129,743.72 and 220,688.16 is: 331,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,156.36 : 1,129,743.72 = 220,688.16 : x
  2. Step 2: Convert to fraction form
    753,156.36/1,129,743.72 = 220,688.16/x
  3. Step 3: Cross multiply
    753,156.36x = 1,129,743.72 × 220,688.16
  4. Step 4: Simplify right side
    753,156.36x = 249,321,062,838.36
  5. Step 5: Solve for x
    x = 249,321,062,838.36/753,156.36
  6. Step 6: Final answer
    x = 331,034.93

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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.