Home / 1,297,614.64-1,790,735.08-724,655.36

Finding the Fourth Proportional to 1,297,614.64, 1,790,735.08 and 724,655.36

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Solution

The fourth proportional to 1,297,614.64, 1,790,735.08 and 724,655.36 is: 1,000,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,614.64 : 1,790,735.08 = 724,655.36 : x
  2. Step 2: Convert to fraction form
    1,297,614.64/1,790,735.08 = 724,655.36/x
  3. Step 3: Cross multiply
    1,297,614.64x = 1,790,735.08 × 724,655.36
  4. Step 4: Simplify right side
    1,297,614.64x = 1,297,665,774,062.03
  5. Step 5: Solve for x
    x = 1,297,665,774,062.03/1,297,614.64
  6. Step 6: Final answer
    x = 1,000,039.41

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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.