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Finding the Fourth Proportional to 1,191,975, 1,644,925.52 and 655,431

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Solution

The fourth proportional to 1,191,975, 1,644,925.52 and 655,431 is: 904,494.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,975 : 1,644,925.52 = 655,431 : x
  2. Step 2: Convert to fraction form
    1,191,975/1,644,925.52 = 655,431/x
  3. Step 3: Cross multiply
    1,191,975x = 1,644,925.52 × 655,431
  4. Step 4: Simplify right side
    1,191,975x = 1,078,135,178,499.12
  5. Step 5: Solve for x
    x = 1,078,135,178,499.12/1,191,975
  6. Step 6: Final answer
    x = 904,494.79

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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.