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Finding the Fourth Proportional to 480,353.56, 720,420.78 and 180,865.72

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Solution

The fourth proportional to 480,353.56, 720,420.78 and 180,865.72 is: 271,257.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,353.56 : 720,420.78 = 180,865.72 : x
  2. Step 2: Convert to fraction form
    480,353.56/720,420.78 = 180,865.72/x
  3. Step 3: Cross multiply
    480,353.56x = 720,420.78 × 180,865.72
  4. Step 4: Simplify right side
    480,353.56x = 130,299,423,077.66
  5. Step 5: Solve for x
    x = 130,299,423,077.66/480,353.56
  6. Step 6: Final answer
    x = 271,257.33

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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.