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Finding the Fourth Proportional to 526,487.61, 789,730.81 and 171,501.06

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Solution

The fourth proportional to 526,487.61, 789,730.81 and 171,501.06 is: 257,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,487.61 : 789,730.81 = 171,501.06 : x
  2. Step 2: Convert to fraction form
    526,487.61/789,730.81 = 171,501.06/x
  3. Step 3: Cross multiply
    526,487.61x = 789,730.81 × 171,501.06
  4. Step 4: Simplify right side
    526,487.61x = 135,439,670,600.91
  5. Step 5: Solve for x
    x = 135,439,670,600.91/526,487.61
  6. Step 6: Final answer
    x = 257,251.39

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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.