Home / 691,742.56-1,037,302.80-669,969.76

Finding the Fourth Proportional to 691,742.56, 1,037,302.80 and 669,969.76

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Solution

The fourth proportional to 691,742.56, 1,037,302.80 and 669,969.76 is: 1,004,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,742.56 : 1,037,302.80 = 669,969.76 : x
  2. Step 2: Convert to fraction form
    691,742.56/1,037,302.80 = 669,969.76/x
  3. Step 3: Cross multiply
    691,742.56x = 1,037,302.80 × 669,969.76
  4. Step 4: Simplify right side
    691,742.56x = 694,961,507,963.33
  5. Step 5: Solve for x
    x = 694,961,507,963.33/691,742.56
  6. Step 6: Final answer
    x = 1,004,653.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.