Home / 999,633.09-1,378,058.86-712,654.95

Finding the Fourth Proportional to 999,633.09, 1,378,058.86 and 712,654.95

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Solution

The fourth proportional to 999,633.09, 1,378,058.86 and 712,654.95 is: 982,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,633.09 : 1,378,058.86 = 712,654.95 : x
  2. Step 2: Convert to fraction form
    999,633.09/1,378,058.86 = 712,654.95/x
  3. Step 3: Cross multiply
    999,633.09x = 1,378,058.86 × 712,654.95
  4. Step 4: Simplify right side
    999,633.09x = 982,080,470,020.21
  5. Step 5: Solve for x
    x = 982,080,470,020.21/999,633.09
  6. Step 6: Final answer
    x = 982,440.93

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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.