Home / 1,261,077.77-1,740,329.33-688,149.38

Finding the Fourth Proportional to 1,261,077.77, 1,740,329.33 and 688,149.38

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Solution

The fourth proportional to 1,261,077.77, 1,740,329.33 and 688,149.38 is: 949,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,077.77 : 1,740,329.33 = 688,149.38 : x
  2. Step 2: Convert to fraction form
    1,261,077.77/1,740,329.33 = 688,149.38/x
  3. Step 3: Cross multiply
    1,261,077.77x = 1,740,329.33 × 688,149.38
  4. Step 4: Simplify right side
    1,261,077.77x = 1,197,606,549,435.32
  5. Step 5: Solve for x
    x = 1,197,606,549,435.32/1,261,077.77
  6. Step 6: Final answer
    x = 949,669.07

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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.