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Finding the Fourth Proportional to 477,009.78, 715,539.18 and 122,026.88

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Solution

The fourth proportional to 477,009.78, 715,539.18 and 122,026.88 is: 183,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,009.78 : 715,539.18 = 122,026.88 : x
  2. Step 2: Convert to fraction form
    477,009.78/715,539.18 = 122,026.88/x
  3. Step 3: Cross multiply
    477,009.78x = 715,539.18 × 122,026.88
  4. Step 4: Simplify right side
    477,009.78x = 87,315,013,653.16
  5. Step 5: Solve for x
    x = 87,315,013,653.16/477,009.78
  6. Step 6: Final answer
    x = 183,046.59

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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.