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Finding the Fourth Proportional to 949,269.96, 1,309,987.83 and 513,687

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Solution

The fourth proportional to 949,269.96, 1,309,987.83 and 513,687 is: 708,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,269.96 : 1,309,987.83 = 513,687 : x
  2. Step 2: Convert to fraction form
    949,269.96/1,309,987.83 = 513,687/x
  3. Step 3: Cross multiply
    949,269.96x = 1,309,987.83 × 513,687
  4. Step 4: Simplify right side
    949,269.96x = 672,923,718,429.21
  5. Step 5: Solve for x
    x = 672,923,718,429.21/949,269.96
  6. Step 6: Final answer
    x = 708,885.51

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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.