Home / 1,218,403.50-1,681,396.83-681,859.50

Finding the Fourth Proportional to 1,218,403.50, 1,681,396.83 and 681,859.50

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Solution

The fourth proportional to 1,218,403.50, 1,681,396.83 and 681,859.50 is: 940,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,403.50 : 1,681,396.83 = 681,859.50 : x
  2. Step 2: Convert to fraction form
    1,218,403.50/1,681,396.83 = 681,859.50/x
  3. Step 3: Cross multiply
    1,218,403.50x = 1,681,396.83 × 681,859.50
  4. Step 4: Simplify right side
    1,218,403.50x = 1,146,476,401,805.39
  5. Step 5: Solve for x
    x = 1,146,476,401,805.39/1,218,403.50
  6. Step 6: Final answer
    x = 940,966.11

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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.