Home / 1,307,721.05-1,961,587.83-396,911.43

Finding the Fourth Proportional to 1,307,721.05, 1,961,587.83 and 396,911.43

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Solution

The fourth proportional to 1,307,721.05, 1,961,587.83 and 396,911.43 is: 595,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,721.05 : 1,961,587.83 = 396,911.43 : x
  2. Step 2: Convert to fraction form
    1,307,721.05/1,961,587.83 = 396,911.43/x
  3. Step 3: Cross multiply
    1,307,721.05x = 1,961,587.83 × 396,911.43
  4. Step 4: Simplify right side
    1,307,721.05x = 778,576,632,164.32
  5. Step 5: Solve for x
    x = 778,576,632,164.32/1,307,721.05
  6. Step 6: Final answer
    x = 595,369.05

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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.