Home / 854,156.88-1,280,812.68-285,342.84

Finding the Fourth Proportional to 854,156.88, 1,280,812.68 and 285,342.84

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Solution

The fourth proportional to 854,156.88, 1,280,812.68 and 285,342.84 is: 427,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,156.88 : 1,280,812.68 = 285,342.84 : x
  2. Step 2: Convert to fraction form
    854,156.88/1,280,812.68 = 285,342.84/x
  3. Step 3: Cross multiply
    854,156.88x = 1,280,812.68 × 285,342.84
  4. Step 4: Simplify right side
    854,156.88x = 365,470,727,619.21
  5. Step 5: Solve for x
    x = 365,470,727,619.21/854,156.88
  6. Step 6: Final answer
    x = 427,873.07

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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.