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Finding the Fourth Proportional to 424,612.02, 636,952.73 and 121,029.56

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Solution

The fourth proportional to 424,612.02, 636,952.73 and 121,029.56 is: 181,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,612.02 : 636,952.73 = 121,029.56 : x
  2. Step 2: Convert to fraction form
    424,612.02/636,952.73 = 121,029.56/x
  3. Step 3: Cross multiply
    424,612.02x = 636,952.73 × 121,029.56
  4. Step 4: Simplify right side
    424,612.02x = 77,090,104,862.79
  5. Step 5: Solve for x
    x = 77,090,104,862.79/424,612.02
  6. Step 6: Final answer
    x = 181,554.22

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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.