Home / 903,278.82-1,246,434.94-521,428.62

Finding the Fourth Proportional to 903,278.82, 1,246,434.94 and 521,428.62

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Solution

The fourth proportional to 903,278.82, 1,246,434.94 and 521,428.62 is: 719,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,278.82 : 1,246,434.94 = 521,428.62 : x
  2. Step 2: Convert to fraction form
    903,278.82/1,246,434.94 = 521,428.62/x
  3. Step 3: Cross multiply
    903,278.82x = 1,246,434.94 × 521,428.62
  4. Step 4: Simplify right side
    903,278.82x = 649,926,850,683.98
  5. Step 5: Solve for x
    x = 649,926,850,683.98/903,278.82
  6. Step 6: Final answer
    x = 719,519.64

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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.