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Finding the Fourth Proportional to 519,018, 778,527.72 and 125,034

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Solution

The fourth proportional to 519,018, 778,527.72 and 125,034 is: 187,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,018 : 778,527.72 = 125,034 : x
  2. Step 2: Convert to fraction form
    519,018/778,527.72 = 125,034/x
  3. Step 3: Cross multiply
    519,018x = 778,527.72 × 125,034
  4. Step 4: Simplify right side
    519,018x = 97,342,434,942.48
  5. Step 5: Solve for x
    x = 97,342,434,942.48/519,018
  6. Step 6: Final answer
    x = 187,551.17

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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.