Home / 763,083.77-1,143,129.21-442,562.28

Finding the Fourth Proportional to 763,083.77, 1,143,129.21 and 442,562.28

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Solution

The fourth proportional to 763,083.77, 1,143,129.21 and 442,562.28 is: 662,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,083.77 : 1,143,129.21 = 442,562.28 : x
  2. Step 2: Convert to fraction form
    763,083.77/1,143,129.21 = 442,562.28/x
  3. Step 3: Cross multiply
    763,083.77x = 1,143,129.21 × 442,562.28
  4. Step 4: Simplify right side
    763,083.77x = 505,905,869,995.96
  5. Step 5: Solve for x
    x = 505,905,869,995.96/763,083.77
  6. Step 6: Final answer
    x = 662,975.53

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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.