Home / 1,128,148.45-1,556,845.16-618,850.82

Finding the Fourth Proportional to 1,128,148.45, 1,556,845.16 and 618,850.82

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Solution

The fourth proportional to 1,128,148.45, 1,556,845.16 and 618,850.82 is: 854,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,148.45 : 1,556,845.16 = 618,850.82 : x
  2. Step 2: Convert to fraction form
    1,128,148.45/1,556,845.16 = 618,850.82/x
  3. Step 3: Cross multiply
    1,128,148.45x = 1,556,845.16 × 618,850.82
  4. Step 4: Simplify right side
    1,128,148.45x = 963,454,900,784.78
  5. Step 5: Solve for x
    x = 963,454,900,784.78/1,128,148.45
  6. Step 6: Final answer
    x = 854,014.30

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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.