Home / 784,627.20-1,176,649.20-311,214.60

Finding the Fourth Proportional to 784,627.20, 1,176,649.20 and 311,214.60

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Solution

The fourth proportional to 784,627.20, 1,176,649.20 and 311,214.60 is: 466,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,627.20 : 1,176,649.20 = 311,214.60 : x
  2. Step 2: Convert to fraction form
    784,627.20/1,176,649.20 = 311,214.60/x
  3. Step 3: Cross multiply
    784,627.20x = 1,176,649.20 × 311,214.60
  4. Step 4: Simplify right side
    784,627.20x = 366,190,410,118.32
  5. Step 5: Solve for x
    x = 366,190,410,118.32/784,627.20
  6. Step 6: Final answer
    x = 466,706.24

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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.