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Finding the Fourth Proportional to 328,342.89, 492,514.43 and 79,024.89

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Solution

The fourth proportional to 328,342.89, 492,514.43 and 79,024.89 is: 118,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,342.89 : 492,514.43 = 79,024.89 : x
  2. Step 2: Convert to fraction form
    328,342.89/492,514.43 = 79,024.89/x
  3. Step 3: Cross multiply
    328,342.89x = 492,514.43 × 79,024.89
  4. Step 4: Simplify right side
    328,342.89x = 38,920,898,259.04
  5. Step 5: Solve for x
    x = 38,920,898,259.04/328,342.89
  6. Step 6: Final answer
    x = 118,537.36

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1.5x scale

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.