Home / 999,872.50-1,379,431.43-580,696.93

Finding the Fourth Proportional to 999,872.50, 1,379,431.43 and 580,696.93

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Solution

The fourth proportional to 999,872.50, 1,379,431.43 and 580,696.93 is: 801,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,872.50 : 1,379,431.43 = 580,696.93 : x
  2. Step 2: Convert to fraction form
    999,872.50/1,379,431.43 = 580,696.93/x
  3. Step 3: Cross multiply
    999,872.50x = 1,379,431.43 × 580,696.93
  4. Step 4: Simplify right side
    999,872.50x = 801,031,595,298.49
  5. Step 5: Solve for x
    x = 801,031,595,298.49/999,872.50
  6. Step 6: Final answer
    x = 801,133.74

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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.