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Finding the Fourth Proportional to 618,773.88, 928,459.44 and 338,283.84

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Solution

The fourth proportional to 618,773.88, 928,459.44 and 338,283.84 is: 507,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,773.88 : 928,459.44 = 338,283.84 : x
  2. Step 2: Convert to fraction form
    618,773.88/928,459.44 = 338,283.84/x
  3. Step 3: Cross multiply
    618,773.88x = 928,459.44 × 338,283.84
  4. Step 4: Simplify right side
    618,773.88x = 314,082,824,647.45
  5. Step 5: Solve for x
    x = 314,082,824,647.45/618,773.88
  6. Step 6: Final answer
    x = 507,589.02

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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.