Home / 1,418,988.91-1,958,208.20-807,127.87

Finding the Fourth Proportional to 1,418,988.91, 1,958,208.20 and 807,127.87

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Solution

The fourth proportional to 1,418,988.91, 1,958,208.20 and 807,127.87 is: 1,113,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,988.91 : 1,958,208.20 = 807,127.87 : x
  2. Step 2: Convert to fraction form
    1,418,988.91/1,958,208.20 = 807,127.87/x
  3. Step 3: Cross multiply
    1,418,988.91x = 1,958,208.20 × 807,127.87
  4. Step 4: Simplify right side
    1,418,988.91x = 1,580,524,413,482.53
  5. Step 5: Solve for x
    x = 1,580,524,413,482.53/1,418,988.91
  6. Step 6: Final answer
    x = 1,113,838.45

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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.