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Finding the Fourth Proportional to 397,335.60, 596,878.20 and 279,237.60

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Solution

The fourth proportional to 397,335.60, 596,878.20 and 279,237.60 is: 419,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,335.60 : 596,878.20 = 279,237.60 : x
  2. Step 2: Convert to fraction form
    397,335.60/596,878.20 = 279,237.60/x
  3. Step 3: Cross multiply
    397,335.60x = 596,878.20 × 279,237.60
  4. Step 4: Simplify right side
    397,335.60x = 166,670,836,060.32
  5. Step 5: Solve for x
    x = 166,670,836,060.32/397,335.60
  6. Step 6: Final answer
    x = 419,471.19

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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.