Home / 784,477.20-1,176,132.60-429,891.60

Finding the Fourth Proportional to 784,477.20, 1,176,132.60 and 429,891.60

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Solution

The fourth proportional to 784,477.20, 1,176,132.60 and 429,891.60 is: 644,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,477.20 : 1,176,132.60 = 429,891.60 : x
  2. Step 2: Convert to fraction form
    784,477.20/1,176,132.60 = 429,891.60/x
  3. Step 3: Cross multiply
    784,477.20x = 1,176,132.60 × 429,891.60
  4. Step 4: Simplify right side
    784,477.20x = 505,609,525,226.16
  5. Step 5: Solve for x
    x = 505,609,525,226.16/784,477.20
  6. Step 6: Final answer
    x = 644,517.81

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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.