Home / 855,579.11-1,284,630.28-477,239.04

Finding the Fourth Proportional to 855,579.11, 1,284,630.28 and 477,239.04

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Solution

The fourth proportional to 855,579.11, 1,284,630.28 and 477,239.04 is: 716,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,579.11 : 1,284,630.28 = 477,239.04 : x
  2. Step 2: Convert to fraction form
    855,579.11/1,284,630.28 = 477,239.04/x
  3. Step 3: Cross multiply
    855,579.11x = 1,284,630.28 × 477,239.04
  4. Step 4: Simplify right side
    855,579.11x = 613,075,720,389.03
  5. Step 5: Solve for x
    x = 613,075,720,389.03/855,579.11
  6. Step 6: Final answer
    x = 716,562.29

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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.