Home / 1,143,007.20-1,712,761.20-1,080,021.60

Finding the Fourth Proportional to 1,143,007.20, 1,712,761.20 and 1,080,021.60

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Solution

The fourth proportional to 1,143,007.20, 1,712,761.20 and 1,080,021.60 is: 1,618,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,007.20 : 1,712,761.20 = 1,080,021.60 : x
  2. Step 2: Convert to fraction form
    1,143,007.20/1,712,761.20 = 1,080,021.60/x
  3. Step 3: Cross multiply
    1,143,007.20x = 1,712,761.20 × 1,080,021.60
  4. Step 4: Simplify right side
    1,143,007.20x = 1,849,819,091,641.92
  5. Step 5: Solve for x
    x = 1,849,819,091,641.92/1,143,007.20
  6. Step 6: Final answer
    x = 1,618,379.21

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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.