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Finding the Fourth Proportional to 526,185.32, 725,143.68 and 380,744.96

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Solution

The fourth proportional to 526,185.32, 725,143.68 and 380,744.96 is: 524,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,185.32 : 725,143.68 = 380,744.96 : x
  2. Step 2: Convert to fraction form
    526,185.32/725,143.68 = 380,744.96/x
  3. Step 3: Cross multiply
    526,185.32x = 725,143.68 × 380,744.96
  4. Step 4: Simplify right side
    526,185.32x = 276,094,801,435.85
  5. Step 5: Solve for x
    x = 276,094,801,435.85/526,185.32
  6. Step 6: Final answer
    x = 524,710.19

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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.