Home / 1,261,082.40-1,740,335.67-688,154.01

Finding the Fourth Proportional to 1,261,082.40, 1,740,335.67 and 688,154.01

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Solution

The fourth proportional to 1,261,082.40, 1,740,335.67 and 688,154.01 is: 949,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,082.40 : 1,740,335.67 = 688,154.01 : x
  2. Step 2: Convert to fraction form
    1,261,082.40/1,740,335.67 = 688,154.01/x
  3. Step 3: Cross multiply
    1,261,082.40x = 1,740,335.67 × 688,154.01
  4. Step 4: Simplify right side
    1,261,082.40x = 1,197,618,970,056.54
  5. Step 5: Solve for x
    x = 1,197,618,970,056.54/1,261,082.40
  6. Step 6: Final answer
    x = 949,675.43

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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.