Home / 784,969.60-1,178,766.60-519,905.20

Finding the Fourth Proportional to 784,969.60, 1,178,766.60 and 519,905.20

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Solution

The fourth proportional to 784,969.60, 1,178,766.60 and 519,905.20 is: 780,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,969.60 : 1,178,766.60 = 519,905.20 : x
  2. Step 2: Convert to fraction form
    784,969.60/1,178,766.60 = 519,905.20/x
  3. Step 3: Cross multiply
    784,969.60x = 1,178,766.60 × 519,905.20
  4. Step 4: Simplify right side
    784,969.60x = 612,846,884,926.32
  5. Step 5: Solve for x
    x = 612,846,884,926.32/784,969.60
  6. Step 6: Final answer
    x = 780,726.90

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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.