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Finding the Fourth Proportional to 1,121,973, 1,548,434.79 and 669,264

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Solution

The fourth proportional to 1,121,973, 1,548,434.79 and 669,264 is: 923,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,973 : 1,548,434.79 = 669,264 : x
  2. Step 2: Convert to fraction form
    1,121,973/1,548,434.79 = 669,264/x
  3. Step 3: Cross multiply
    1,121,973x = 1,548,434.79 × 669,264
  4. Step 4: Simplify right side
    1,121,973x = 1,036,311,661,294.56
  5. Step 5: Solve for x
    x = 1,036,311,661,294.56/1,121,973
  6. Step 6: Final answer
    x = 923,651.16

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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.