Home / 982,377.09-1,472,063.36-661,339.89

Finding the Fourth Proportional to 982,377.09, 1,472,063.36 and 661,339.89

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Solution

The fourth proportional to 982,377.09, 1,472,063.36 and 661,339.89 is: 990,998.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,377.09 : 1,472,063.36 = 661,339.89 : x
  2. Step 2: Convert to fraction form
    982,377.09/1,472,063.36 = 661,339.89/x
  3. Step 3: Cross multiply
    982,377.09x = 1,472,063.36 × 661,339.89
  4. Step 4: Simplify right side
    982,377.09x = 973,534,217,268.73
  5. Step 5: Solve for x
    x = 973,534,217,268.73/982,377.09
  6. Step 6: Final answer
    x = 990,998.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.