Home / 447,621.90-671,432.85-442,956.30

Finding the Fourth Proportional to 447,621.90, 671,432.85 and 442,956.30

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Solution

The fourth proportional to 447,621.90, 671,432.85 and 442,956.30 is: 664,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,621.90 : 671,432.85 = 442,956.30 : x
  2. Step 2: Convert to fraction form
    447,621.90/671,432.85 = 442,956.30/x
  3. Step 3: Cross multiply
    447,621.90x = 671,432.85 × 442,956.30
  4. Step 4: Simplify right side
    447,621.90x = 297,415,410,934.46
  5. Step 5: Solve for x
    x = 297,415,410,934.46/447,621.90
  6. Step 6: Final answer
    x = 664,434.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.