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Finding the Fourth Proportional to 404,317.60, 606,476.40 and 279,901.60

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Solution

The fourth proportional to 404,317.60, 606,476.40 and 279,901.60 is: 419,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,317.60 : 606,476.40 = 279,901.60 : x
  2. Step 2: Convert to fraction form
    404,317.60/606,476.40 = 279,901.60/x
  3. Step 3: Cross multiply
    404,317.60x = 606,476.40 × 279,901.60
  4. Step 4: Simplify right side
    404,317.60x = 169,753,714,722.24
  5. Step 5: Solve for x
    x = 169,753,714,722.24/404,317.60
  6. Step 6: Final answer
    x = 419,852.40

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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.