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Finding the Fourth Proportional to 552,870.78, 828,780.75 and 216,127.32

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Solution

The fourth proportional to 552,870.78, 828,780.75 and 216,127.32 is: 323,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,870.78 : 828,780.75 = 216,127.32 : x
  2. Step 2: Convert to fraction form
    552,870.78/828,780.75 = 216,127.32/x
  3. Step 3: Cross multiply
    552,870.78x = 828,780.75 × 216,127.32
  4. Step 4: Simplify right side
    552,870.78x = 179,122,162,365.09
  5. Step 5: Solve for x
    x = 179,122,162,365.09/552,870.78
  6. Step 6: Final answer
    x = 323,985.58

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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.