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Finding the Fourth Proportional to 526,448.58, 789,728.57 and 171,490.38

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Solution

The fourth proportional to 526,448.58, 789,728.57 and 171,490.38 is: 257,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,448.58 : 789,728.57 = 171,490.38 : x
  2. Step 2: Convert to fraction form
    526,448.58/789,728.57 = 171,490.38/x
  3. Step 3: Cross multiply
    526,448.58x = 789,728.57 × 171,490.38
  4. Step 4: Simplify right side
    526,448.58x = 135,430,851,708.71
  5. Step 5: Solve for x
    x = 135,430,851,708.71/526,448.58
  6. Step 6: Final answer
    x = 257,253.71

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1.5x scale

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.