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Finding the Fourth Proportional to 609,180.96, 840,697.20 and 340,908.96

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Solution

The fourth proportional to 609,180.96, 840,697.20 and 340,908.96 is: 470,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,180.96 : 840,697.20 = 340,908.96 : x
  2. Step 2: Convert to fraction form
    609,180.96/840,697.20 = 340,908.96/x
  3. Step 3: Cross multiply
    609,180.96x = 840,697.20 × 340,908.96
  4. Step 4: Simplify right side
    609,180.96x = 286,601,208,126.91
  5. Step 5: Solve for x
    x = 286,601,208,126.91/609,180.96
  6. Step 6: Final answer
    x = 470,469.74

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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.