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Finding the Fourth Proportional to 417,009.87, 620,150.28 and 403,723.85

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Solution

The fourth proportional to 417,009.87, 620,150.28 and 403,723.85 is: 600,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,009.87 : 620,150.28 = 403,723.85 : x
  2. Step 2: Convert to fraction form
    417,009.87/620,150.28 = 403,723.85/x
  3. Step 3: Cross multiply
    417,009.87x = 620,150.28 × 403,723.85
  4. Step 4: Simplify right side
    417,009.87x = 250,369,454,005.46
  5. Step 5: Solve for x
    x = 250,369,454,005.46/417,009.87
  6. Step 6: Final answer
    x = 600,392.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.