Home / 521,678.73-719,943.63-292,222.62

Finding the Fourth Proportional to 521,678.73, 719,943.63 and 292,222.62

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Solution

The fourth proportional to 521,678.73, 719,943.63 and 292,222.62 is: 403,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,678.73 : 719,943.63 = 292,222.62 : x
  2. Step 2: Convert to fraction form
    521,678.73/719,943.63 = 292,222.62/x
  3. Step 3: Cross multiply
    521,678.73x = 719,943.63 × 292,222.62
  4. Step 4: Simplify right side
    521,678.73x = 210,383,813,810.91
  5. Step 5: Solve for x
    x = 210,383,813,810.91/521,678.73
  6. Step 6: Final answer
    x = 403,282.33

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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.