Home / 999,644.20-1,378,074.20-712,666.06

Finding the Fourth Proportional to 999,644.20, 1,378,074.20 and 712,666.06

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Solution

The fourth proportional to 999,644.20, 1,378,074.20 and 712,666.06 is: 982,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,644.20 : 1,378,074.20 = 712,666.06 : x
  2. Step 2: Convert to fraction form
    999,644.20/1,378,074.20 = 712,666.06/x
  3. Step 3: Cross multiply
    999,644.20x = 1,378,074.20 × 712,666.06
  4. Step 4: Simplify right side
    999,644.20x = 982,106,703,493.14
  5. Step 5: Solve for x
    x = 982,106,703,493.14/999,644.20
  6. Step 6: Final answer
    x = 982,456.26

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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.