Home / 1,261,090.92-1,740,347.50-688,162.53

Finding the Fourth Proportional to 1,261,090.92, 1,740,347.50 and 688,162.53

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Solution

The fourth proportional to 1,261,090.92, 1,740,347.50 and 688,162.53 is: 949,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,090.92 : 1,740,347.50 = 688,162.53 : x
  2. Step 2: Convert to fraction form
    1,261,090.92/1,740,347.50 = 688,162.53/x
  3. Step 3: Cross multiply
    1,261,090.92x = 1,740,347.50 × 688,162.53
  4. Step 4: Simplify right side
    1,261,090.92x = 1,197,641,936,958.77
  5. Step 5: Solve for x
    x = 1,197,641,936,958.77/1,261,090.92
  6. Step 6: Final answer
    x = 949,687.23

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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.