Home / 1,199,392.15-1,798,476.94-400,386.55

Finding the Fourth Proportional to 1,199,392.15, 1,798,476.94 and 400,386.55

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Solution

The fourth proportional to 1,199,392.15, 1,798,476.94 and 400,386.55 is: 600,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,392.15 : 1,798,476.94 = 400,386.55 : x
  2. Step 2: Convert to fraction form
    1,199,392.15/1,798,476.94 = 400,386.55/x
  3. Step 3: Cross multiply
    1,199,392.15x = 1,798,476.94 × 400,386.55
  4. Step 4: Simplify right side
    1,199,392.15x = 720,085,967,267.81
  5. Step 5: Solve for x
    x = 720,085,967,267.81/1,199,392.15
  6. Step 6: Final answer
    x = 600,375.76

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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.