Home / 1,387,603.22-1,915,482.81-843,913.54

Finding the Fourth Proportional to 1,387,603.22, 1,915,482.81 and 843,913.54

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Solution

The fourth proportional to 1,387,603.22, 1,915,482.81 and 843,913.54 is: 1,164,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,603.22 : 1,915,482.81 = 843,913.54 : x
  2. Step 2: Convert to fraction form
    1,387,603.22/1,915,482.81 = 843,913.54/x
  3. Step 3: Cross multiply
    1,387,603.22x = 1,915,482.81 × 843,913.54
  4. Step 4: Simplify right side
    1,387,603.22x = 1,616,501,878,996.25
  5. Step 5: Solve for x
    x = 1,616,501,878,996.25/1,387,603.22
  6. Step 6: Final answer
    x = 1,164,959.73

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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.