Home / 727,742.20-1,092,002.10-328,444.60

Finding the Fourth Proportional to 727,742.20, 1,092,002.10 and 328,444.60

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Solution

The fourth proportional to 727,742.20, 1,092,002.10 and 328,444.60 is: 492,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,742.20 : 1,092,002.10 = 328,444.60 : x
  2. Step 2: Convert to fraction form
    727,742.20/1,092,002.10 = 328,444.60/x
  3. Step 3: Cross multiply
    727,742.20x = 1,092,002.10 × 328,444.60
  4. Step 4: Simplify right side
    727,742.20x = 358,662,192,933.66
  5. Step 5: Solve for x
    x = 358,662,192,933.66/727,742.20
  6. Step 6: Final answer
    x = 492,842.37

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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.