Home / 1,275,567.18-1,759,662.57-816,313.57

Finding the Fourth Proportional to 1,275,567.18, 1,759,662.57 and 816,313.57

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Solution

The fourth proportional to 1,275,567.18, 1,759,662.57 and 816,313.57 is: 1,126,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,567.18 : 1,759,662.57 = 816,313.57 : x
  2. Step 2: Convert to fraction form
    1,275,567.18/1,759,662.57 = 816,313.57/x
  3. Step 3: Cross multiply
    1,275,567.18x = 1,759,662.57 × 816,313.57
  4. Step 4: Simplify right side
    1,275,567.18x = 1,436,436,434,512.08
  5. Step 5: Solve for x
    x = 1,436,436,434,512.08/1,275,567.18
  6. Step 6: Final answer
    x = 1,126,115.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.