Home / 716,666.82-988,979.27-394,376.73

Finding the Fourth Proportional to 716,666.82, 988,979.27 and 394,376.73

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Solution

The fourth proportional to 716,666.82, 988,979.27 and 394,376.73 is: 544,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,666.82 : 988,979.27 = 394,376.73 : x
  2. Step 2: Convert to fraction form
    716,666.82/988,979.27 = 394,376.73/x
  3. Step 3: Cross multiply
    716,666.82x = 988,979.27 × 394,376.73
  4. Step 4: Simplify right side
    716,666.82x = 390,030,408,568.50
  5. Step 5: Solve for x
    x = 390,030,408,568.50/716,666.82
  6. Step 6: Final answer
    x = 544,228.36

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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.