Home / 979,100.64-1,467,640.71-410,811.75

Finding the Fourth Proportional to 979,100.64, 1,467,640.71 and 410,811.75

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Solution

The fourth proportional to 979,100.64, 1,467,640.71 and 410,811.75 is: 615,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,100.64 : 1,467,640.71 = 410,811.75 : x
  2. Step 2: Convert to fraction form
    979,100.64/1,467,640.71 = 410,811.75/x
  3. Step 3: Cross multiply
    979,100.64x = 1,467,640.71 × 410,811.75
  4. Step 4: Simplify right side
    979,100.64x = 602,924,048,446.34
  5. Step 5: Solve for x
    x = 602,924,048,446.34/979,100.64
  6. Step 6: Final answer
    x = 615,793.74

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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.