Home / 1,261,090.55-1,740,346.98-688,162.16

Finding the Fourth Proportional to 1,261,090.55, 1,740,346.98 and 688,162.16

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Solution

The fourth proportional to 1,261,090.55, 1,740,346.98 and 688,162.16 is: 949,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,090.55 : 1,740,346.98 = 688,162.16 : x
  2. Step 2: Convert to fraction form
    1,261,090.55/1,740,346.98 = 688,162.16/x
  3. Step 3: Cross multiply
    1,261,090.55x = 1,740,346.98 × 688,162.16
  4. Step 4: Simplify right side
    1,261,090.55x = 1,197,640,928,204.54
  5. Step 5: Solve for x
    x = 1,197,640,928,204.54/1,261,090.55
  6. Step 6: Final answer
    x = 949,686.71

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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.