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Finding the Fourth Proportional to 417,458.40, 625,496.40 and 355,250.40

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Solution

The fourth proportional to 417,458.40, 625,496.40 and 355,250.40 is: 532,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,458.40 : 625,496.40 = 355,250.40 : x
  2. Step 2: Convert to fraction form
    417,458.40/625,496.40 = 355,250.40/x
  3. Step 3: Cross multiply
    417,458.40x = 625,496.40 × 355,250.40
  4. Step 4: Simplify right side
    417,458.40x = 222,207,846,298.56
  5. Step 5: Solve for x
    x = 222,207,846,298.56/417,458.40
  6. Step 6: Final answer
    x = 532,287.40

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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.