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Finding the Fourth Proportional to 658,022.65, 908,074.16 and 356,216.65

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Solution

The fourth proportional to 658,022.65, 908,074.16 and 356,216.65 is: 491,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,022.65 : 908,074.16 = 356,216.65 : x
  2. Step 2: Convert to fraction form
    658,022.65/908,074.16 = 356,216.65/x
  3. Step 3: Cross multiply
    658,022.65x = 908,074.16 × 356,216.65
  4. Step 4: Simplify right side
    658,022.65x = 323,471,135,226.76
  5. Step 5: Solve for x
    x = 323,471,135,226.76/658,022.65
  6. Step 6: Final answer
    x = 491,580.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.