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Finding the Fourth Proportional to 874,845, 1,207,286.10 and 472,437

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Solution

The fourth proportional to 874,845, 1,207,286.10 and 472,437 is: 651,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,845 : 1,207,286.10 = 472,437 : x
  2. Step 2: Convert to fraction form
    874,845/1,207,286.10 = 472,437/x
  3. Step 3: Cross multiply
    874,845x = 1,207,286.10 × 472,437
  4. Step 4: Simplify right side
    874,845x = 570,366,623,225.70
  5. Step 5: Solve for x
    x = 570,366,623,225.70/874,845
  6. Step 6: Final answer
    x = 651,963.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.