Home / 1,878,126.36-2,817,238.05-511,911.27

Finding the Fourth Proportional to 1,878,126.36, 2,817,238.05 and 511,911.27

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Solution

The fourth proportional to 1,878,126.36, 2,817,238.05 and 511,911.27 is: 767,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,126.36 : 2,817,238.05 = 511,911.27 : x
  2. Step 2: Convert to fraction form
    1,878,126.36/2,817,238.05 = 511,911.27/x
  3. Step 3: Cross multiply
    1,878,126.36x = 2,817,238.05 × 511,911.27
  4. Step 4: Simplify right side
    1,878,126.36x = 1,442,175,908,067.82
  5. Step 5: Solve for x
    x = 1,442,175,908,067.82/1,878,126.36
  6. Step 6: Final answer
    x = 767,880.13

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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.