Home / 1,261,174.32-1,740,457.26-688,251.33

Finding the Fourth Proportional to 1,261,174.32, 1,740,457.26 and 688,251.33

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Solution

The fourth proportional to 1,261,174.32, 1,740,457.26 and 688,251.33 is: 949,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,174.32 : 1,740,457.26 = 688,251.33 : x
  2. Step 2: Convert to fraction form
    1,261,174.32/1,740,457.26 = 688,251.33/x
  3. Step 3: Cross multiply
    1,261,174.32x = 1,740,457.26 × 688,251.33
  4. Step 4: Simplify right side
    1,261,174.32x = 1,197,872,024,003.16
  5. Step 5: Solve for x
    x = 1,197,872,024,003.16/1,261,174.32
  6. Step 6: Final answer
    x = 949,806.86

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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.