Home / 999,310.83-1,378,965.03-591,341.70

Finding the Fourth Proportional to 999,310.83, 1,378,965.03 and 591,341.70

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Solution

The fourth proportional to 999,310.83, 1,378,965.03 and 591,341.70 is: 816,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,310.83 : 1,378,965.03 = 591,341.70 : x
  2. Step 2: Convert to fraction form
    999,310.83/1,378,965.03 = 591,341.70/x
  3. Step 3: Cross multiply
    999,310.83x = 1,378,965.03 × 591,341.70
  4. Step 4: Simplify right side
    999,310.83x = 815,439,525,080.75
  5. Step 5: Solve for x
    x = 815,439,525,080.75/999,310.83
  6. Step 6: Final answer
    x = 816,001.89

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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.