Home / 289,718.10-434,577.15-268,722.90

Finding the Fourth Proportional to 289,718.10, 434,577.15 and 268,722.90

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Solution

The fourth proportional to 289,718.10, 434,577.15 and 268,722.90 is: 403,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,718.10 : 434,577.15 = 268,722.90 : x
  2. Step 2: Convert to fraction form
    289,718.10/434,577.15 = 268,722.90/x
  3. Step 3: Cross multiply
    289,718.10x = 434,577.15 × 268,722.90
  4. Step 4: Simplify right side
    289,718.10x = 116,780,832,021.74
  5. Step 5: Solve for x
    x = 116,780,832,021.74/289,718.10
  6. Step 6: Final answer
    x = 403,084.35

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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.