Home / 999,805.59-1,378,296.41-712,827.45

Finding the Fourth Proportional to 999,805.59, 1,378,296.41 and 712,827.45

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Solution

The fourth proportional to 999,805.59, 1,378,296.41 and 712,827.45 is: 982,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,805.59 : 1,378,296.41 = 712,827.45 : x
  2. Step 2: Convert to fraction form
    999,805.59/1,378,296.41 = 712,827.45/x
  3. Step 3: Cross multiply
    999,805.59x = 1,378,296.41 × 712,827.45
  4. Step 4: Simplify right side
    999,805.59x = 982,487,511,720.32
  5. Step 5: Solve for x
    x = 982,487,511,720.32/999,805.59
  6. Step 6: Final answer
    x = 982,678.55

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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.