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Finding the Fourth Proportional to 808,624.20, 1,213,009.20 and 335,211.60

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Solution

The fourth proportional to 808,624.20, 1,213,009.20 and 335,211.60 is: 502,847.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,624.20 : 1,213,009.20 = 335,211.60 : x
  2. Step 2: Convert to fraction form
    808,624.20/1,213,009.20 = 335,211.60/x
  3. Step 3: Cross multiply
    808,624.20x = 1,213,009.20 × 335,211.60
  4. Step 4: Simplify right side
    808,624.20x = 406,614,754,746.72
  5. Step 5: Solve for x
    x = 406,614,754,746.72/808,624.20
  6. Step 6: Final answer
    x = 502,847.62

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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.