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Finding the Fourth Proportional to 649,616.76, 974,479.51 and 169,843.64

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Solution

The fourth proportional to 649,616.76, 974,479.51 and 169,843.64 is: 254,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,616.76 : 974,479.51 = 169,843.64 : x
  2. Step 2: Convert to fraction form
    649,616.76/974,479.51 = 169,843.64/x
  3. Step 3: Cross multiply
    649,616.76x = 974,479.51 × 169,843.64
  4. Step 4: Simplify right side
    649,616.76x = 165,509,142,423.72
  5. Step 5: Solve for x
    x = 165,509,142,423.72/649,616.76
  6. Step 6: Final answer
    x = 254,779.67

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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.