Home / 1,572,128.91-2,171,184.68-1,083,369.26

Finding the Fourth Proportional to 1,572,128.91, 2,171,184.68 and 1,083,369.26

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Solution

The fourth proportional to 1,572,128.91, 2,171,184.68 and 1,083,369.26 is: 1,496,184.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,128.91 : 2,171,184.68 = 1,083,369.26 : x
  2. Step 2: Convert to fraction form
    1,572,128.91/2,171,184.68 = 1,083,369.26/x
  3. Step 3: Cross multiply
    1,572,128.91x = 2,171,184.68 × 1,083,369.26
  4. Step 4: Simplify right side
    1,572,128.91x = 2,352,194,740,106.05
  5. Step 5: Solve for x
    x = 2,352,194,740,106.05/1,572,128.91
  6. Step 6: Final answer
    x = 1,496,184.39

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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.