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Finding the Fourth Proportional to 888,949, 1,226,749.62 and 486,541

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Solution

The fourth proportional to 888,949, 1,226,749.62 and 486,541 is: 671,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,949 : 1,226,749.62 = 486,541 : x
  2. Step 2: Convert to fraction form
    888,949/1,226,749.62 = 486,541/x
  3. Step 3: Cross multiply
    888,949x = 1,226,749.62 × 486,541
  4. Step 4: Simplify right side
    888,949x = 596,863,986,864.42
  5. Step 5: Solve for x
    x = 596,863,986,864.42/888,949
  6. Step 6: Final answer
    x = 671,426.58

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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.