Home / 1,223,884.50-1,688,859.09-672,571.21

Finding the Fourth Proportional to 1,223,884.50, 1,688,859.09 and 672,571.21

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Solution

The fourth proportional to 1,223,884.50, 1,688,859.09 and 672,571.21 is: 928,092.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,884.50 : 1,688,859.09 = 672,571.21 : x
  2. Step 2: Convert to fraction form
    1,223,884.50/1,688,859.09 = 672,571.21/x
  3. Step 3: Cross multiply
    1,223,884.50x = 1,688,859.09 × 672,571.21
  4. Step 4: Simplify right side
    1,223,884.50x = 1,135,878,010,708.38
  5. Step 5: Solve for x
    x = 1,135,878,010,708.38/1,223,884.50
  6. Step 6: Final answer
    x = 928,092.49

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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.