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Finding the Fourth Proportional to 407,923.20, 610,675.20 and 303,206.40

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Solution

The fourth proportional to 407,923.20, 610,675.20 and 303,206.40 is: 453,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,923.20 : 610,675.20 = 303,206.40 : x
  2. Step 2: Convert to fraction form
    407,923.20/610,675.20 = 303,206.40/x
  3. Step 3: Cross multiply
    407,923.20x = 610,675.20 × 303,206.40
  4. Step 4: Simplify right side
    407,923.20x = 185,160,628,961.28
  5. Step 5: Solve for x
    x = 185,160,628,961.28/407,923.20
  6. Step 6: Final answer
    x = 453,910.51

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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.