Home / 980,435.30-1,352,790.81-572,351.94

Finding the Fourth Proportional to 980,435.30, 1,352,790.81 and 572,351.94

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Solution

The fourth proportional to 980,435.30, 1,352,790.81 and 572,351.94 is: 789,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,435.30 : 1,352,790.81 = 572,351.94 : x
  2. Step 2: Convert to fraction form
    980,435.30/1,352,790.81 = 572,351.94/x
  3. Step 3: Cross multiply
    980,435.30x = 1,352,790.81 × 572,351.94
  4. Step 4: Simplify right side
    980,435.30x = 774,272,444,517.67
  5. Step 5: Solve for x
    x = 774,272,444,517.67/980,435.30
  6. Step 6: Final answer
    x = 789,723.14

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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.