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Finding the Fourth Proportional to 589,616.20, 884,424.30 and 400,659.40

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Solution

The fourth proportional to 589,616.20, 884,424.30 and 400,659.40 is: 600,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,616.20 : 884,424.30 = 400,659.40 : x
  2. Step 2: Convert to fraction form
    589,616.20/884,424.30 = 400,659.40/x
  3. Step 3: Cross multiply
    589,616.20x = 884,424.30 × 400,659.40
  4. Step 4: Simplify right side
    589,616.20x = 354,352,909,383.42
  5. Step 5: Solve for x
    x = 354,352,909,383.42/589,616.20
  6. Step 6: Final answer
    x = 600,989.10

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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.