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Finding the Fourth Proportional to 559,617.48, 772,269.57 and 304,968.60

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Solution

The fourth proportional to 559,617.48, 772,269.57 and 304,968.60 is: 420,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,617.48 : 772,269.57 = 304,968.60 : x
  2. Step 2: Convert to fraction form
    559,617.48/772,269.57 = 304,968.60/x
  3. Step 3: Cross multiply
    559,617.48x = 772,269.57 × 304,968.60
  4. Step 4: Simplify right side
    559,617.48x = 235,517,969,585.50
  5. Step 5: Solve for x
    x = 235,517,969,585.50/559,617.48
  6. Step 6: Final answer
    x = 420,855.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.