Home / 766,912.86-1,058,318.55-427,372.38

Finding the Fourth Proportional to 766,912.86, 1,058,318.55 and 427,372.38

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Solution

The fourth proportional to 766,912.86, 1,058,318.55 and 427,372.38 is: 589,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,912.86 : 1,058,318.55 = 427,372.38 : x
  2. Step 2: Convert to fraction form
    766,912.86/1,058,318.55 = 427,372.38/x
  3. Step 3: Cross multiply
    766,912.86x = 1,058,318.55 × 427,372.38
  4. Step 4: Simplify right side
    766,912.86x = 452,296,117,511.65
  5. Step 5: Solve for x
    x = 452,296,117,511.65/766,912.86
  6. Step 6: Final answer
    x = 589,762.07

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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.