Home / 743,540.02-1,115,307.79-211,061.50

Finding the Fourth Proportional to 743,540.02, 1,115,307.79 and 211,061.50

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Solution

The fourth proportional to 743,540.02, 1,115,307.79 and 211,061.50 is: 316,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,540.02 : 1,115,307.79 = 211,061.50 : x
  2. Step 2: Convert to fraction form
    743,540.02/1,115,307.79 = 211,061.50/x
  3. Step 3: Cross multiply
    743,540.02x = 1,115,307.79 × 211,061.50
  4. Step 4: Simplify right side
    743,540.02x = 235,398,535,119.09
  5. Step 5: Solve for x
    x = 235,398,535,119.09/743,540.02
  6. Step 6: Final answer
    x = 316,591.61

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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.