Home / 775,472.81-1,070,968.34-690,939.59

Finding the Fourth Proportional to 775,472.81, 1,070,968.34 and 690,939.59

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Solution

The fourth proportional to 775,472.81, 1,070,968.34 and 690,939.59 is: 954,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,472.81 : 1,070,968.34 = 690,939.59 : x
  2. Step 2: Convert to fraction form
    775,472.81/1,070,968.34 = 690,939.59/x
  3. Step 3: Cross multiply
    775,472.81x = 1,070,968.34 × 690,939.59
  4. Step 4: Simplify right side
    775,472.81x = 739,974,425,742.58
  5. Step 5: Solve for x
    x = 739,974,425,742.58/775,472.81
  6. Step 6: Final answer
    x = 954,223.56

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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.