Home / 1,261,168.73-1,740,398.51-688,218.65

Finding the Fourth Proportional to 1,261,168.73, 1,740,398.51 and 688,218.65

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Solution

The fourth proportional to 1,261,168.73, 1,740,398.51 and 688,218.65 is: 949,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,168.73 : 1,740,398.51 = 688,218.65 : x
  2. Step 2: Convert to fraction form
    1,261,168.73/1,740,398.51 = 688,218.65/x
  3. Step 3: Cross multiply
    1,261,168.73x = 1,740,398.51 × 688,218.65
  4. Step 4: Simplify right side
    1,261,168.73x = 1,197,774,713,014.21
  5. Step 5: Solve for x
    x = 1,197,774,713,014.21/1,261,168.73
  6. Step 6: Final answer
    x = 949,733.91

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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.