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Finding the Fourth Proportional to 557,650.68, 769,562.62 and 303,001.86

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Solution

The fourth proportional to 557,650.68, 769,562.62 and 303,001.86 is: 418,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,650.68 : 769,562.62 = 303,001.86 : x
  2. Step 2: Convert to fraction form
    557,650.68/769,562.62 = 303,001.86/x
  3. Step 3: Cross multiply
    557,650.68x = 769,562.62 × 303,001.86
  4. Step 4: Simplify right side
    557,650.68x = 233,178,909,079.21
  5. Step 5: Solve for x
    x = 233,178,909,079.21/557,650.68
  6. Step 6: Final answer
    x = 418,145.12

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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.