Home / 726,668.60-1,091,846.10-645,567.80

Finding the Fourth Proportional to 726,668.60, 1,091,846.10 and 645,567.80

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Solution

The fourth proportional to 726,668.60, 1,091,846.10 and 645,567.80 is: 969,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,668.60 : 1,091,846.10 = 645,567.80 : x
  2. Step 2: Convert to fraction form
    726,668.60/1,091,846.10 = 645,567.80/x
  3. Step 3: Cross multiply
    726,668.60x = 1,091,846.10 × 645,567.80
  4. Step 4: Simplify right side
    726,668.60x = 704,860,684,715.58
  5. Step 5: Solve for x
    x = 704,860,684,715.58/726,668.60
  6. Step 6: Final answer
    x = 969,989.19

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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.