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Finding the Fourth Proportional to 618,058.80, 927,433.80 and 263,012.40

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Solution

The fourth proportional to 618,058.80, 927,433.80 and 263,012.40 is: 394,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,058.80 : 927,433.80 = 263,012.40 : x
  2. Step 2: Convert to fraction form
    618,058.80/927,433.80 = 263,012.40/x
  3. Step 3: Cross multiply
    618,058.80x = 927,433.80 × 263,012.40
  4. Step 4: Simplify right side
    618,058.80x = 243,926,589,579.12
  5. Step 5: Solve for x
    x = 243,926,589,579.12/618,058.80
  6. Step 6: Final answer
    x = 394,665.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.