Home / 1,276,521.09-1,914,787.80-377,979.78

Finding the Fourth Proportional to 1,276,521.09, 1,914,787.80 and 377,979.78

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Solution

The fourth proportional to 1,276,521.09, 1,914,787.80 and 377,979.78 is: 566,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,521.09 : 1,914,787.80 = 377,979.78 : x
  2. Step 2: Convert to fraction form
    1,276,521.09/1,914,787.80 = 377,979.78/x
  3. Step 3: Cross multiply
    1,276,521.09x = 1,914,787.80 × 377,979.78
  4. Step 4: Simplify right side
    1,276,521.09x = 723,751,071,390.68
  5. Step 5: Solve for x
    x = 723,751,071,390.68/1,276,521.09
  6. Step 6: Final answer
    x = 566,971.50

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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.