Home / 447,667.30-618,009.08-345,463.12

Finding the Fourth Proportional to 447,667.30, 618,009.08 and 345,463.12

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Solution

The fourth proportional to 447,667.30, 618,009.08 and 345,463.12 is: 476,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,667.30 : 618,009.08 = 345,463.12 : x
  2. Step 2: Convert to fraction form
    447,667.30/618,009.08 = 345,463.12/x
  3. Step 3: Cross multiply
    447,667.30x = 618,009.08 × 345,463.12
  4. Step 4: Simplify right side
    447,667.30x = 213,499,344,965.13
  5. Step 5: Solve for x
    x = 213,499,344,965.13/447,667.30
  6. Step 6: Final answer
    x = 476,915.21

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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.