Home / 1,320,059.28-1,821,681.36-716,447.28

Finding the Fourth Proportional to 1,320,059.28, 1,821,681.36 and 716,447.28

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Solution

The fourth proportional to 1,320,059.28, 1,821,681.36 and 716,447.28 is: 988,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,059.28 : 1,821,681.36 = 716,447.28 : x
  2. Step 2: Convert to fraction form
    1,320,059.28/1,821,681.36 = 716,447.28/x
  3. Step 3: Cross multiply
    1,320,059.28x = 1,821,681.36 × 716,447.28
  4. Step 4: Simplify right side
    1,320,059.28x = 1,305,138,655,398.70
  5. Step 5: Solve for x
    x = 1,305,138,655,398.70/1,320,059.28
  6. Step 6: Final answer
    x = 988,697.00

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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.