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Finding the Fourth Proportional to 553,402.22, 828,228.31 and 340,305.07

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Solution

The fourth proportional to 553,402.22, 828,228.31 and 340,305.07 is: 509,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,402.22 : 828,228.31 = 340,305.07 : x
  2. Step 2: Convert to fraction form
    553,402.22/828,228.31 = 340,305.07/x
  3. Step 3: Cross multiply
    553,402.22x = 828,228.31 × 340,305.07
  4. Step 4: Simplify right side
    553,402.22x = 281,850,293,010.53
  5. Step 5: Solve for x
    x = 281,850,293,010.53/553,402.22
  6. Step 6: Final answer
    x = 509,304.59

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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.