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Finding the Fourth Proportional to 480,715.99, 663,476.81 and 308,848.80

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Solution

The fourth proportional to 480,715.99, 663,476.81 and 308,848.80 is: 426,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,715.99 : 663,476.81 = 308,848.80 : x
  2. Step 2: Convert to fraction form
    480,715.99/663,476.81 = 308,848.80/x
  3. Step 3: Cross multiply
    480,715.99x = 663,476.81 × 308,848.80
  4. Step 4: Simplify right side
    480,715.99x = 204,914,013,475.60
  5. Step 5: Solve for x
    x = 204,914,013,475.60/480,715.99
  6. Step 6: Final answer
    x = 426,268.36

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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.