Home / 1,229,907.97-1,697,275.65-686,029.78

Finding the Fourth Proportional to 1,229,907.97, 1,697,275.65 and 686,029.78

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Solution

The fourth proportional to 1,229,907.97, 1,697,275.65 and 686,029.78 is: 946,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,907.97 : 1,697,275.65 = 686,029.78 : x
  2. Step 2: Convert to fraction form
    1,229,907.97/1,697,275.65 = 686,029.78/x
  3. Step 3: Cross multiply
    1,229,907.97x = 1,697,275.65 × 686,029.78
  4. Step 4: Simplify right side
    1,229,907.97x = 1,164,381,640,768.86
  5. Step 5: Solve for x
    x = 1,164,381,640,768.86/1,229,907.97
  6. Step 6: Final answer
    x = 946,722.58

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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.