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Finding the Fourth Proportional to 553,753.66, 830,047.27 and 287,231.26

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Solution

The fourth proportional to 553,753.66, 830,047.27 and 287,231.26 is: 430,544.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,753.66 : 830,047.27 = 287,231.26 : x
  2. Step 2: Convert to fraction form
    553,753.66/830,047.27 = 287,231.26/x
  3. Step 3: Cross multiply
    553,753.66x = 830,047.27 × 287,231.26
  4. Step 4: Simplify right side
    553,753.66x = 238,415,523,221.66
  5. Step 5: Solve for x
    x = 238,415,523,221.66/553,753.66
  6. Step 6: Final answer
    x = 430,544.37

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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.