Home / 807,989.32-1,115,025-445,419.36

Finding the Fourth Proportional to 807,989.32, 1,115,025 and 445,419.36

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Solution

The fourth proportional to 807,989.32, 1,115,025 and 445,419.36 is: 614,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,989.32 : 1,115,025 = 445,419.36 : x
  2. Step 2: Convert to fraction form
    807,989.32/1,115,025 = 445,419.36/x
  3. Step 3: Cross multiply
    807,989.32x = 1,115,025 × 445,419.36
  4. Step 4: Simplify right side
    807,989.32x = 496,653,721,884
  5. Step 5: Solve for x
    x = 496,653,721,884/807,989.32
  6. Step 6: Final answer
    x = 614,678.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.