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Finding the Fourth Proportional to 885,223.40, 1,326,251.10 and 538,375.40

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Solution

The fourth proportional to 885,223.40, 1,326,251.10 and 538,375.40 is: 806,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,223.40 : 1,326,251.10 = 538,375.40 : x
  2. Step 2: Convert to fraction form
    885,223.40/1,326,251.10 = 538,375.40/x
  3. Step 3: Cross multiply
    885,223.40x = 1,326,251.10 × 538,375.40
  4. Step 4: Simplify right side
    885,223.40x = 714,020,966,462.94
  5. Step 5: Solve for x
    x = 714,020,966,462.94/885,223.40
  6. Step 6: Final answer
    x = 806,599.74

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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.