Home / 761,711.20-1,142,570.88-229,228.60

Finding the Fourth Proportional to 761,711.20, 1,142,570.88 and 229,228.60

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Solution

The fourth proportional to 761,711.20, 1,142,570.88 and 229,228.60 is: 343,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,711.20 : 1,142,570.88 = 229,228.60 : x
  2. Step 2: Convert to fraction form
    761,711.20/1,142,570.88 = 229,228.60/x
  3. Step 3: Cross multiply
    761,711.20x = 1,142,570.88 × 229,228.60
  4. Step 4: Simplify right side
    761,711.20x = 261,909,923,223.17
  5. Step 5: Solve for x
    x = 261,909,923,223.17/761,711.20
  6. Step 6: Final answer
    x = 343,844.13

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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.