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Finding the Fourth Proportional to 803,425.89, 1,205,145.89 and 204,387.68

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Solution

The fourth proportional to 803,425.89, 1,205,145.89 and 204,387.68 is: 306,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,425.89 : 1,205,145.89 = 204,387.68 : x
  2. Step 2: Convert to fraction form
    803,425.89/1,205,145.89 = 204,387.68/x
  3. Step 3: Cross multiply
    803,425.89x = 1,205,145.89 × 204,387.68
  4. Step 4: Simplify right side
    803,425.89x = 246,316,973,036.22
  5. Step 5: Solve for x
    x = 246,316,973,036.22/803,425.89
  6. Step 6: Final answer
    x = 306,583.32

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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.