Home / 509,755.32-764,788.50-260,612.28

Finding the Fourth Proportional to 509,755.32, 764,788.50 and 260,612.28

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Solution

The fourth proportional to 509,755.32, 764,788.50 and 260,612.28 is: 390,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,755.32 : 764,788.50 = 260,612.28 : x
  2. Step 2: Convert to fraction form
    509,755.32/764,788.50 = 260,612.28/x
  3. Step 3: Cross multiply
    509,755.32x = 764,788.50 × 260,612.28
  4. Step 4: Simplify right side
    509,755.32x = 199,313,274,702.78
  5. Step 5: Solve for x
    x = 199,313,274,702.78/509,755.32
  6. Step 6: Final answer
    x = 390,997.93

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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.