Home / 1,199,391.90-1,798,476.56-400,386.30

Finding the Fourth Proportional to 1,199,391.90, 1,798,476.56 and 400,386.30

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Solution

The fourth proportional to 1,199,391.90, 1,798,476.56 and 400,386.30 is: 600,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,391.90 : 1,798,476.56 = 400,386.30 : x
  2. Step 2: Convert to fraction form
    1,199,391.90/1,798,476.56 = 400,386.30/x
  3. Step 3: Cross multiply
    1,199,391.90x = 1,798,476.56 × 400,386.30
  4. Step 4: Simplify right side
    1,199,391.90x = 720,085,367,503.71
  5. Step 5: Solve for x
    x = 720,085,367,503.71/1,199,391.90
  6. Step 6: Final answer
    x = 600,375.38

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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.