Home / 643,523.30-888,075.72-353,132.33

Finding the Fourth Proportional to 643,523.30, 888,075.72 and 353,132.33

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Solution

The fourth proportional to 643,523.30, 888,075.72 and 353,132.33 is: 487,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,523.30 : 888,075.72 = 353,132.33 : x
  2. Step 2: Convert to fraction form
    643,523.30/888,075.72 = 353,132.33/x
  3. Step 3: Cross multiply
    643,523.30x = 888,075.72 × 353,132.33
  4. Step 4: Simplify right side
    643,523.30x = 313,608,246,646.11
  5. Step 5: Solve for x
    x = 313,608,246,646.11/643,523.30
  6. Step 6: Final answer
    x = 487,330.06

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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.