Home / 858,962.83-1,288,442.79-219,266.47

Finding the Fourth Proportional to 858,962.83, 1,288,442.79 and 219,266.47

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Solution

The fourth proportional to 858,962.83, 1,288,442.79 and 219,266.47 is: 328,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,962.83 : 1,288,442.79 = 219,266.47 : x
  2. Step 2: Convert to fraction form
    858,962.83/1,288,442.79 = 219,266.47/x
  3. Step 3: Cross multiply
    858,962.83x = 1,288,442.79 × 219,266.47
  4. Step 4: Simplify right side
    858,962.83x = 282,512,302,360.25
  5. Step 5: Solve for x
    x = 282,512,302,360.25/858,962.83
  6. Step 6: Final answer
    x = 328,899.33

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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.