Home / 854,415.27-1,281,360.42-405,003.15

Finding the Fourth Proportional to 854,415.27, 1,281,360.42 and 405,003.15

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Solution

The fourth proportional to 854,415.27, 1,281,360.42 and 405,003.15 is: 607,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,415.27 : 1,281,360.42 = 405,003.15 : x
  2. Step 2: Convert to fraction form
    854,415.27/1,281,360.42 = 405,003.15/x
  3. Step 3: Cross multiply
    854,415.27x = 1,281,360.42 × 405,003.15
  4. Step 4: Simplify right side
    854,415.27x = 518,955,006,385.32
  5. Step 5: Solve for x
    x = 518,955,006,385.32/854,415.27
  6. Step 6: Final answer
    x = 607,380.30

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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.