Home / 761,450.40-1,141,371.78-255,531.66

Finding the Fourth Proportional to 761,450.40, 1,141,371.78 and 255,531.66

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Solution

The fourth proportional to 761,450.40, 1,141,371.78 and 255,531.66 is: 383,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,450.40 : 1,141,371.78 = 255,531.66 : x
  2. Step 2: Convert to fraction form
    761,450.40/1,141,371.78 = 255,531.66/x
  3. Step 3: Cross multiply
    761,450.40x = 1,141,371.78 × 255,531.66
  4. Step 4: Simplify right side
    761,450.40x = 291,656,625,620.56
  5. Step 5: Solve for x
    x = 291,656,625,620.56/761,450.40
  6. Step 6: Final answer
    x = 383,027.74

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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.