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Finding the Fourth Proportional to 587,000.70, 879,480.45 and 270,809.10

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Solution

The fourth proportional to 587,000.70, 879,480.45 and 270,809.10 is: 405,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,000.70 : 879,480.45 = 270,809.10 : x
  2. Step 2: Convert to fraction form
    587,000.70/879,480.45 = 270,809.10/x
  3. Step 3: Cross multiply
    587,000.70x = 879,480.45 × 270,809.10
  4. Step 4: Simplify right side
    587,000.70x = 238,171,309,132.10
  5. Step 5: Solve for x
    x = 238,171,309,132.10/587,000.70
  6. Step 6: Final answer
    x = 405,742.80

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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.