Home / 489,117.34-674,981.30-271,359.05

Finding the Fourth Proportional to 489,117.34, 674,981.30 and 271,359.05

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Solution

The fourth proportional to 489,117.34, 674,981.30 and 271,359.05 is: 374,475.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,117.34 : 674,981.30 = 271,359.05 : x
  2. Step 2: Convert to fraction form
    489,117.34/674,981.30 = 271,359.05/x
  3. Step 3: Cross multiply
    489,117.34x = 674,981.30 × 271,359.05
  4. Step 4: Simplify right side
    489,117.34x = 183,162,281,639.26
  5. Step 5: Solve for x
    x = 183,162,281,639.26/489,117.34
  6. Step 6: Final answer
    x = 374,475.14

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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.