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Finding the Fourth Proportional to 763,298.54, 1,150,434.32 and 657,954

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Solution

The fourth proportional to 763,298.54, 1,150,434.32 and 657,954 is: 991,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,298.54 : 1,150,434.32 = 657,954 : x
  2. Step 2: Convert to fraction form
    763,298.54/1,150,434.32 = 657,954/x
  3. Step 3: Cross multiply
    763,298.54x = 1,150,434.32 × 657,954
  4. Step 4: Simplify right side
    763,298.54x = 756,932,862,581.28
  5. Step 5: Solve for x
    x = 756,932,862,581.28/763,298.54
  6. Step 6: Final answer
    x = 991,660.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.