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Finding the Fourth Proportional to 495,651, 743,491.08 and 121,674

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Solution

The fourth proportional to 495,651, 743,491.08 and 121,674 is: 182,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,651 : 743,491.08 = 121,674 : x
  2. Step 2: Convert to fraction form
    495,651/743,491.08 = 121,674/x
  3. Step 3: Cross multiply
    495,651x = 743,491.08 × 121,674
  4. Step 4: Simplify right side
    495,651x = 90,463,533,667.92
  5. Step 5: Solve for x
    x = 90,463,533,667.92/495,651
  6. Step 6: Final answer
    x = 182,514.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.