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Finding the Fourth Proportional to 412,697.60, 569,479.68 and 242,921.60

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Solution

The fourth proportional to 412,697.60, 569,479.68 and 242,921.60 is: 335,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,697.60 : 569,479.68 = 242,921.60 : x
  2. Step 2: Convert to fraction form
    412,697.60/569,479.68 = 242,921.60/x
  3. Step 3: Cross multiply
    412,697.60x = 569,479.68 × 242,921.60
  4. Step 4: Simplify right side
    412,697.60x = 138,338,915,033.09
  5. Step 5: Solve for x
    x = 138,338,915,033.09/412,697.60
  6. Step 6: Final answer
    x = 335,206.49

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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.