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Finding the Fourth Proportional to 480,499.14, 662,930.32 and 308,513.46

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Solution

The fourth proportional to 480,499.14, 662,930.32 and 308,513.46 is: 425,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,499.14 : 662,930.32 = 308,513.46 : x
  2. Step 2: Convert to fraction form
    480,499.14/662,930.32 = 308,513.46/x
  3. Step 3: Cross multiply
    480,499.14x = 662,930.32 × 308,513.46
  4. Step 4: Simplify right side
    480,499.14x = 204,522,926,762.11
  5. Step 5: Solve for x
    x = 204,522,926,762.11/480,499.14
  6. Step 6: Final answer
    x = 425,646.81

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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.