Home / 831,502.06-1,147,767.78-491,969.50

Finding the Fourth Proportional to 831,502.06, 1,147,767.78 and 491,969.50

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Solution

The fourth proportional to 831,502.06, 1,147,767.78 and 491,969.50 is: 679,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,502.06 : 1,147,767.78 = 491,969.50 : x
  2. Step 2: Convert to fraction form
    831,502.06/1,147,767.78 = 491,969.50/x
  3. Step 3: Cross multiply
    831,502.06x = 1,147,767.78 × 491,969.50
  4. Step 4: Simplify right side
    831,502.06x = 564,666,740,842.71
  5. Step 5: Solve for x
    x = 564,666,740,842.71/831,502.06
  6. Step 6: Final answer
    x = 679,092.41

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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.