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Finding the Fourth Proportional to 873,398.64, 1,309,223.40 and 368,081.52

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Solution

The fourth proportional to 873,398.64, 1,309,223.40 and 368,081.52 is: 551,753.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,398.64 : 1,309,223.40 = 368,081.52 : x
  2. Step 2: Convert to fraction form
    873,398.64/1,309,223.40 = 368,081.52/x
  3. Step 3: Cross multiply
    873,398.64x = 1,309,223.40 × 368,081.52
  4. Step 4: Simplify right side
    873,398.64x = 481,900,939,091.57
  5. Step 5: Solve for x
    x = 481,900,939,091.57/873,398.64
  6. Step 6: Final answer
    x = 551,753.71

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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.