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Finding the Fourth Proportional to 662,505.71, 993,851.51 and 325,559.61

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Solution

The fourth proportional to 662,505.71, 993,851.51 and 325,559.61 is: 488,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,505.71 : 993,851.51 = 325,559.61 : x
  2. Step 2: Convert to fraction form
    662,505.71/993,851.51 = 325,559.61/x
  3. Step 3: Cross multiply
    662,505.71x = 993,851.51 × 325,559.61
  4. Step 4: Simplify right side
    662,505.71x = 323,557,908,365.71
  5. Step 5: Solve for x
    x = 323,557,908,365.71/662,505.71
  6. Step 6: Final answer
    x = 488,385.09

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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.