Home / 447,780.10-617,462.97-345,822.16

Finding the Fourth Proportional to 447,780.10, 617,462.97 and 345,822.16

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Solution

The fourth proportional to 447,780.10, 617,462.97 and 345,822.16 is: 476,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,780.10 : 617,462.97 = 345,822.16 : x
  2. Step 2: Convert to fraction form
    447,780.10/617,462.97 = 345,822.16/x
  3. Step 3: Cross multiply
    447,780.10x = 617,462.97 × 345,822.16
  4. Step 4: Simplify right side
    447,780.10x = 213,532,378,005.42
  5. Step 5: Solve for x
    x = 213,532,378,005.42/447,780.10
  6. Step 6: Final answer
    x = 476,868.84

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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.