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Finding the Fourth Proportional to 572,769.20, 859,153.80 and 403,932.80

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Solution

The fourth proportional to 572,769.20, 859,153.80 and 403,932.80 is: 605,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,769.20 : 859,153.80 = 403,932.80 : x
  2. Step 2: Convert to fraction form
    572,769.20/859,153.80 = 403,932.80/x
  3. Step 3: Cross multiply
    572,769.20x = 859,153.80 × 403,932.80
  4. Step 4: Simplify right side
    572,769.20x = 347,040,400,064.64
  5. Step 5: Solve for x
    x = 347,040,400,064.64/572,769.20
  6. Step 6: Final answer
    x = 605,899.20

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