Home / 999,982.42-1,378,672.91-637,273.94

Finding the Fourth Proportional to 999,982.42, 1,378,672.91 and 637,273.94

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Solution

The fourth proportional to 999,982.42, 1,378,672.91 and 637,273.94 is: 878,607.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,982.42 : 1,378,672.91 = 637,273.94 : x
  2. Step 2: Convert to fraction form
    999,982.42/1,378,672.91 = 637,273.94/x
  3. Step 3: Cross multiply
    999,982.42x = 1,378,672.91 × 637,273.94
  4. Step 4: Simplify right side
    999,982.42x = 878,592,317,392.04
  5. Step 5: Solve for x
    x = 878,592,317,392.04/999,982.42
  6. Step 6: Final answer
    x = 878,607.76

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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.