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Finding the Fourth Proportional to 618,549.76, 926,249.28 and 407,548.16

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Solution

The fourth proportional to 618,549.76, 926,249.28 and 407,548.16 is: 610,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,549.76 : 926,249.28 = 407,548.16 : x
  2. Step 2: Convert to fraction form
    618,549.76/926,249.28 = 407,548.16/x
  3. Step 3: Cross multiply
    618,549.76x = 926,249.28 × 407,548.16
  4. Step 4: Simplify right side
    618,549.76x = 377,491,189,765.33
  5. Step 5: Solve for x
    x = 377,491,189,765.33/618,549.76
  6. Step 6: Final answer
    x = 610,284.27

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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.