Home / 291,788.20-437,619.12-78,550.84

Finding the Fourth Proportional to 291,788.20, 437,619.12 and 78,550.84

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Solution

The fourth proportional to 291,788.20, 437,619.12 and 78,550.84 is: 117,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,788.20 : 437,619.12 = 78,550.84 : x
  2. Step 2: Convert to fraction form
    291,788.20/437,619.12 = 78,550.84/x
  3. Step 3: Cross multiply
    291,788.20x = 437,619.12 × 78,550.84
  4. Step 4: Simplify right side
    291,788.20x = 34,375,349,476.06
  5. Step 5: Solve for x
    x = 34,375,349,476.06/291,788.20
  6. Step 6: Final answer
    x = 117,809.25

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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.