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Finding the Fourth Proportional to 618,475.20, 927,799.20 and 263,486.40

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Solution

The fourth proportional to 618,475.20, 927,799.20 and 263,486.40 is: 395,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,475.20 : 927,799.20 = 263,486.40 : x
  2. Step 2: Convert to fraction form
    618,475.20/927,799.20 = 263,486.40/x
  3. Step 3: Cross multiply
    618,475.20x = 927,799.20 × 263,486.40
  4. Step 4: Simplify right side
    618,475.20x = 244,462,471,130.88
  5. Step 5: Solve for x
    x = 244,462,471,130.88/618,475.20
  6. Step 6: Final answer
    x = 395,266.41

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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.