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Finding the Fourth Proportional to 489,557.86, 675,595.29 and 271,781.26

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Solution

The fourth proportional to 489,557.86, 675,595.29 and 271,781.26 is: 375,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,557.86 : 675,595.29 = 271,781.26 : x
  2. Step 2: Convert to fraction form
    489,557.86/675,595.29 = 271,781.26/x
  3. Step 3: Cross multiply
    489,557.86x = 675,595.29 × 271,781.26
  4. Step 4: Simplify right side
    489,557.86x = 183,614,139,166.27
  5. Step 5: Solve for x
    x = 183,614,139,166.27/489,557.86
  6. Step 6: Final answer
    x = 375,061.16

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1.5x scale

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.