Home / 1,073,195.78-1,480,687.02-643,319.06

Finding the Fourth Proportional to 1,073,195.78, 1,480,687.02 and 643,319.06

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Solution

The fourth proportional to 1,073,195.78, 1,480,687.02 and 643,319.06 is: 887,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,195.78 : 1,480,687.02 = 643,319.06 : x
  2. Step 2: Convert to fraction form
    1,073,195.78/1,480,687.02 = 643,319.06/x
  3. Step 3: Cross multiply
    1,073,195.78x = 1,480,687.02 × 643,319.06
  4. Step 4: Simplify right side
    1,073,195.78x = 952,554,174,457.17
  5. Step 5: Solve for x
    x = 952,554,174,457.17/1,073,195.78
  6. Step 6: Final answer
    x = 887,586.59

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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.