Home / 635,669.39-876,857.24-380,872.95

Finding the Fourth Proportional to 635,669.39, 876,857.24 and 380,872.95

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Solution

The fourth proportional to 635,669.39, 876,857.24 and 380,872.95 is: 525,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,669.39 : 876,857.24 = 380,872.95 : x
  2. Step 2: Convert to fraction form
    635,669.39/876,857.24 = 380,872.95/x
  3. Step 3: Cross multiply
    635,669.39x = 876,857.24 × 380,872.95
  4. Step 4: Simplify right side
    635,669.39x = 333,971,201,823.29
  5. Step 5: Solve for x
    x = 333,971,201,823.29/635,669.39
  6. Step 6: Final answer
    x = 525,385.07

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1.5x scale

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.