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Finding the Fourth Proportional to 527,552.07, 728,052.62 and 298,103.51

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Solution

The fourth proportional to 527,552.07, 728,052.62 and 298,103.51 is: 411,400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,552.07 : 728,052.62 = 298,103.51 : x
  2. Step 2: Convert to fraction form
    527,552.07/728,052.62 = 298,103.51/x
  3. Step 3: Cross multiply
    527,552.07x = 728,052.62 × 298,103.51
  4. Step 4: Simplify right side
    527,552.07x = 217,035,036,355.92
  5. Step 5: Solve for x
    x = 217,035,036,355.92/527,552.07
  6. Step 6: Final answer
    x = 411,400.22

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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.