Home / 1,138,531-1,571,231.29-655,168.48

Finding the Fourth Proportional to 1,138,531, 1,571,231.29 and 655,168.48

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Solution

The fourth proportional to 1,138,531, 1,571,231.29 and 655,168.48 is: 904,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,531 : 1,571,231.29 = 655,168.48 : x
  2. Step 2: Convert to fraction form
    1,138,531/1,571,231.29 = 655,168.48/x
  3. Step 3: Cross multiply
    1,138,531x = 1,571,231.29 × 655,168.48
  4. Step 4: Simplify right side
    1,138,531x = 1,029,421,215,997.74
  5. Step 5: Solve for x
    x = 1,029,421,215,997.74/1,138,531
  6. Step 6: Final answer
    x = 904,166.17

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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.