Home / 765,419.88-1,148,389.32-338,896.97

Finding the Fourth Proportional to 765,419.88, 1,148,389.32 and 338,896.97

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Solution

The fourth proportional to 765,419.88, 1,148,389.32 and 338,896.97 is: 508,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,419.88 : 1,148,389.32 = 338,896.97 : x
  2. Step 2: Convert to fraction form
    765,419.88/1,148,389.32 = 338,896.97/x
  3. Step 3: Cross multiply
    765,419.88x = 1,148,389.32 × 338,896.97
  4. Step 4: Simplify right side
    765,419.88x = 389,185,660,928.36
  5. Step 5: Solve for x
    x = 389,185,660,928.36/765,419.88
  6. Step 6: Final answer
    x = 508,460.35

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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.