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Finding the Fourth Proportional to 1,203,822.71, 1,661,264.74 and 659,948.62

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Solution

The fourth proportional to 1,203,822.71, 1,661,264.74 and 659,948.62 is: 910,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,822.71 : 1,661,264.74 = 659,948.62 : x
  2. Step 2: Convert to fraction form
    1,203,822.71/1,661,264.74 = 659,948.62/x
  3. Step 3: Cross multiply
    1,203,822.71x = 1,661,264.74 × 659,948.62
  4. Step 4: Simplify right side
    1,203,822.71x = 1,096,349,372,617.66
  5. Step 5: Solve for x
    x = 1,096,349,372,617.66/1,203,822.71
  6. Step 6: Final answer
    x = 910,723.28

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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.