Home / 1,200,325.69-1,798,647.90-815,584.55

Finding the Fourth Proportional to 1,200,325.69, 1,798,647.90 and 815,584.55

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Solution

The fourth proportional to 1,200,325.69, 1,798,647.90 and 815,584.55 is: 1,222,126.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,325.69 : 1,798,647.90 = 815,584.55 : x
  2. Step 2: Convert to fraction form
    1,200,325.69/1,798,647.90 = 815,584.55/x
  3. Step 3: Cross multiply
    1,200,325.69x = 1,798,647.90 × 815,584.55
  4. Step 4: Simplify right side
    1,200,325.69x = 1,466,949,426,078.26
  5. Step 5: Solve for x
    x = 1,466,949,426,078.26/1,200,325.69
  6. Step 6: Final answer
    x = 1,222,126.16

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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.