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Finding the Fourth Proportional to 778,855.10, 1,168,805.10 and 273,415.10

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Solution

The fourth proportional to 778,855.10, 1,168,805.10 and 273,415.10 is: 410,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,855.10 : 1,168,805.10 = 273,415.10 : x
  2. Step 2: Convert to fraction form
    778,855.10/1,168,805.10 = 273,415.10/x
  3. Step 3: Cross multiply
    778,855.10x = 1,168,805.10 × 273,415.10
  4. Step 4: Simplify right side
    778,855.10x = 319,568,963,297.01
  5. Step 5: Solve for x
    x = 319,568,963,297.01/778,855.10
  6. Step 6: Final answer
    x = 410,306.05

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1.5x scale

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.