Home / 1,277,263.25-1,915,894.73-876,689.60

Finding the Fourth Proportional to 1,277,263.25, 1,915,894.73 and 876,689.60

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Solution

The fourth proportional to 1,277,263.25, 1,915,894.73 and 876,689.60 is: 1,315,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,263.25 : 1,915,894.73 = 876,689.60 : x
  2. Step 2: Convert to fraction form
    1,277,263.25/1,915,894.73 = 876,689.60/x
  3. Step 3: Cross multiply
    1,277,263.25x = 1,915,894.73 × 876,689.60
  4. Step 4: Simplify right side
    1,277,263.25x = 1,679,644,980,102.36
  5. Step 5: Solve for x
    x = 1,679,644,980,102.36/1,277,263.25
  6. Step 6: Final answer
    x = 1,315,034.29

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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.