Home / 291,839.07-437,725.79-78,622.74

Finding the Fourth Proportional to 291,839.07, 437,725.79 and 78,622.74

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Solution

The fourth proportional to 291,839.07, 437,725.79 and 78,622.74 is: 117,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,839.07 : 437,725.79 = 78,622.74 : x
  2. Step 2: Convert to fraction form
    291,839.07/437,725.79 = 78,622.74/x
  3. Step 3: Cross multiply
    291,839.07x = 437,725.79 × 78,622.74
  4. Step 4: Simplify right side
    291,839.07x = 34,415,200,585.35
  5. Step 5: Solve for x
    x = 34,415,200,585.35/291,839.07
  6. Step 6: Final answer
    x = 117,925.27

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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.