Home / 1,380,716.31-2,071,192.73-421,387.95

Finding the Fourth Proportional to 1,380,716.31, 2,071,192.73 and 421,387.95

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Solution

The fourth proportional to 1,380,716.31, 2,071,192.73 and 421,387.95 is: 632,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,716.31 : 2,071,192.73 = 421,387.95 : x
  2. Step 2: Convert to fraction form
    1,380,716.31/2,071,192.73 = 421,387.95/x
  3. Step 3: Cross multiply
    1,380,716.31x = 2,071,192.73 × 421,387.95
  4. Step 4: Simplify right side
    1,380,716.31x = 872,775,656,442.66
  5. Step 5: Solve for x
    x = 872,775,656,442.66/1,380,716.31
  6. Step 6: Final answer
    x = 632,118.02

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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.