Home / 846,194.78-1,269,479.05-313,715.84

Finding the Fourth Proportional to 846,194.78, 1,269,479.05 and 313,715.84

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Solution

The fourth proportional to 846,194.78, 1,269,479.05 and 313,715.84 is: 470,643.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,194.78 : 1,269,479.05 = 313,715.84 : x
  2. Step 2: Convert to fraction form
    846,194.78/1,269,479.05 = 313,715.84/x
  3. Step 3: Cross multiply
    846,194.78x = 1,269,479.05 × 313,715.84
  4. Step 4: Simplify right side
    846,194.78x = 398,255,679,401.47
  5. Step 5: Solve for x
    x = 398,255,679,401.47/846,194.78
  6. Step 6: Final answer
    x = 470,643.03

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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.