Home / 662,815.31-914,711.54-376,362.05

Finding the Fourth Proportional to 662,815.31, 914,711.54 and 376,362.05

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Solution

The fourth proportional to 662,815.31, 914,711.54 and 376,362.05 is: 519,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,815.31 : 914,711.54 = 376,362.05 : x
  2. Step 2: Convert to fraction form
    662,815.31/914,711.54 = 376,362.05/x
  3. Step 3: Cross multiply
    662,815.31x = 914,711.54 × 376,362.05
  4. Step 4: Simplify right side
    662,815.31x = 344,262,703,897.69
  5. Step 5: Solve for x
    x = 344,262,703,897.69/662,815.31
  6. Step 6: Final answer
    x = 519,394.62

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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.