Home / 890,278.56-1,335,420.16-259,207.52

Finding the Fourth Proportional to 890,278.56, 1,335,420.16 and 259,207.52

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Solution

The fourth proportional to 890,278.56, 1,335,420.16 and 259,207.52 is: 388,811.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,278.56 : 1,335,420.16 = 259,207.52 : x
  2. Step 2: Convert to fraction form
    890,278.56/1,335,420.16 = 259,207.52/x
  3. Step 3: Cross multiply
    890,278.56x = 1,335,420.16 × 259,207.52
  4. Step 4: Simplify right side
    890,278.56x = 346,150,947,831.60
  5. Step 5: Solve for x
    x = 346,150,947,831.60/890,278.56
  6. Step 6: Final answer
    x = 388,811.96

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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.