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Finding the Fourth Proportional to 427,594.55, 589,986.72 and 255,486.65

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Solution

The fourth proportional to 427,594.55, 589,986.72 and 255,486.65 is: 352,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,594.55 : 589,986.72 = 255,486.65 : x
  2. Step 2: Convert to fraction form
    427,594.55/589,986.72 = 255,486.65/x
  3. Step 3: Cross multiply
    427,594.55x = 589,986.72 × 255,486.65
  4. Step 4: Simplify right side
    427,594.55x = 150,733,727,687.35
  5. Step 5: Solve for x
    x = 150,733,727,687.35/427,594.55
  6. Step 6: Final answer
    x = 352,515.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.