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Finding the Fourth Proportional to 587,000.20, 879,479.70 and 270,808.60

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Solution

The fourth proportional to 587,000.20, 879,479.70 and 270,808.60 is: 405,742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,000.20 : 879,479.70 = 270,808.60 : x
  2. Step 2: Convert to fraction form
    587,000.20/879,479.70 = 270,808.60/x
  3. Step 3: Cross multiply
    587,000.20x = 879,479.70 × 270,808.60
  4. Step 4: Simplify right side
    587,000.20x = 238,170,666,285.42
  5. Step 5: Solve for x
    x = 238,170,666,285.42/587,000.20
  6. Step 6: Final answer
    x = 405,742.05

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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.