Home / 823,854.78-1,235,899.08-255,280.55

Finding the Fourth Proportional to 823,854.78, 1,235,899.08 and 255,280.55

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Solution

The fourth proportional to 823,854.78, 1,235,899.08 and 255,280.55 is: 382,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,854.78 : 1,235,899.08 = 255,280.55 : x
  2. Step 2: Convert to fraction form
    823,854.78/1,235,899.08 = 255,280.55/x
  3. Step 3: Cross multiply
    823,854.78x = 1,235,899.08 × 255,280.55
  4. Step 4: Simplify right side
    823,854.78x = 315,500,990,707.40
  5. Step 5: Solve for x
    x = 315,500,990,707.40/823,854.78
  6. Step 6: Final answer
    x = 382,957.04

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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.