Home / 423,075.88-634,551.18-123,476.05

Finding the Fourth Proportional to 423,075.88, 634,551.18 and 123,476.05

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Solution

The fourth proportional to 423,075.88, 634,551.18 and 123,476.05 is: 185,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,075.88 : 634,551.18 = 123,476.05 : x
  2. Step 2: Convert to fraction form
    423,075.88/634,551.18 = 123,476.05/x
  3. Step 3: Cross multiply
    423,075.88x = 634,551.18 × 123,476.05
  4. Step 4: Simplify right side
    423,075.88x = 78,351,873,229.24
  5. Step 5: Solve for x
    x = 78,351,873,229.24/423,075.88
  6. Step 6: Final answer
    x = 185,195.79

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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.