Home / 1,139,389.88-1,571,883.12-655,839.32

Finding the Fourth Proportional to 1,139,389.88, 1,571,883.12 and 655,839.32

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Solution

The fourth proportional to 1,139,389.88, 1,571,883.12 and 655,839.32 is: 904,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,389.88 : 1,571,883.12 = 655,839.32 : x
  2. Step 2: Convert to fraction form
    1,139,389.88/1,571,883.12 = 655,839.32/x
  3. Step 3: Cross multiply
    1,139,389.88x = 1,571,883.12 × 655,839.32
  4. Step 4: Simplify right side
    1,139,389.88x = 1,030,902,756,540.28
  5. Step 5: Solve for x
    x = 1,030,902,756,540.28/1,139,389.88
  6. Step 6: Final answer
    x = 904,784.90

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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.