Home / 1,207,920.36-1,666,935.54-664,104.18

Finding the Fourth Proportional to 1,207,920.36, 1,666,935.54 and 664,104.18

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Solution

The fourth proportional to 1,207,920.36, 1,666,935.54 and 664,104.18 is: 916,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,920.36 : 1,666,935.54 = 664,104.18 : x
  2. Step 2: Convert to fraction form
    1,207,920.36/1,666,935.54 = 664,104.18/x
  3. Step 3: Cross multiply
    1,207,920.36x = 1,666,935.54 × 664,104.18
  4. Step 4: Simplify right side
    1,207,920.36x = 1,107,018,859,904.56
  5. Step 5: Solve for x
    x = 1,107,018,859,904.56/1,207,920.36
  6. Step 6: Final answer
    x = 916,466.76

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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.