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Finding the Fourth Proportional to 417,475.65, 627,075.96 and 399,282.54

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Solution

The fourth proportional to 417,475.65, 627,075.96 and 399,282.54 is: 599,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,475.65 : 627,075.96 = 399,282.54 : x
  2. Step 2: Convert to fraction form
    417,475.65/627,075.96 = 399,282.54/x
  3. Step 3: Cross multiply
    417,475.65x = 627,075.96 × 399,282.54
  4. Step 4: Simplify right side
    417,475.65x = 250,380,482,081.74
  5. Step 5: Solve for x
    x = 250,380,482,081.74/417,475.65
  6. Step 6: Final answer
    x = 599,748.71

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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.