Home / 500,725.56-691,000.34-271,288.55

Finding the Fourth Proportional to 500,725.56, 691,000.34 and 271,288.55

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Solution

The fourth proportional to 500,725.56, 691,000.34 and 271,288.55 is: 374,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,725.56 : 691,000.34 = 271,288.55 : x
  2. Step 2: Convert to fraction form
    500,725.56/691,000.34 = 271,288.55/x
  3. Step 3: Cross multiply
    500,725.56x = 691,000.34 × 271,288.55
  4. Step 4: Simplify right side
    500,725.56x = 187,460,478,931.66
  5. Step 5: Solve for x
    x = 187,460,478,931.66/500,725.56
  6. Step 6: Final answer
    x = 374,377.69

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1.5x scale

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.