Home / 890,988.32-1,336,340.32-259,754.56

Finding the Fourth Proportional to 890,988.32, 1,336,340.32 and 259,754.56

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Solution

The fourth proportional to 890,988.32, 1,336,340.32 and 259,754.56 is: 389,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,988.32 : 1,336,340.32 = 259,754.56 : x
  2. Step 2: Convert to fraction form
    890,988.32/1,336,340.32 = 259,754.56/x
  3. Step 3: Cross multiply
    890,988.32x = 1,336,340.32 × 259,754.56
  4. Step 4: Simplify right side
    890,988.32x = 347,120,491,831.86
  5. Step 5: Solve for x
    x = 347,120,491,831.86/890,988.32
  6. Step 6: Final answer
    x = 389,590.40

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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.