Home / 754,075.48-1,040,644.02-409,934.52

Finding the Fourth Proportional to 754,075.48, 1,040,644.02 and 409,934.52

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Solution

The fourth proportional to 754,075.48, 1,040,644.02 and 409,934.52 is: 565,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,075.48 : 1,040,644.02 = 409,934.52 : x
  2. Step 2: Convert to fraction form
    754,075.48/1,040,644.02 = 409,934.52/x
  3. Step 3: Cross multiply
    754,075.48x = 1,040,644.02 × 409,934.52
  4. Step 4: Simplify right side
    754,075.48x = 426,595,906,829.57
  5. Step 5: Solve for x
    x = 426,595,906,829.57/754,075.48
  6. Step 6: Final answer
    x = 565,720.43

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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.