Home / 753,113.88-1,129,670.81-220,634.91

Finding the Fourth Proportional to 753,113.88, 1,129,670.81 and 220,634.91

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Solution

The fourth proportional to 753,113.88, 1,129,670.81 and 220,634.91 is: 330,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,113.88 : 1,129,670.81 = 220,634.91 : x
  2. Step 2: Convert to fraction form
    753,113.88/1,129,670.81 = 220,634.91/x
  3. Step 3: Cross multiply
    753,113.88x = 1,129,670.81 × 220,634.91
  4. Step 4: Simplify right side
    753,113.88x = 249,244,816,390.80
  5. Step 5: Solve for x
    x = 249,244,816,390.80/753,113.88
  6. Step 6: Final answer
    x = 330,952.36

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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.