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Finding the Fourth Proportional to 447,392.61, 617,392.65 and 243,447.57

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Solution

The fourth proportional to 447,392.61, 617,392.65 and 243,447.57 is: 335,952.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,392.61 : 617,392.65 = 243,447.57 : x
  2. Step 2: Convert to fraction form
    447,392.61/617,392.65 = 243,447.57/x
  3. Step 3: Cross multiply
    447,392.61x = 617,392.65 × 243,447.57
  4. Step 4: Simplify right side
    447,392.61x = 150,302,740,378.36
  5. Step 5: Solve for x
    x = 150,302,740,378.36/447,392.61
  6. Step 6: Final answer
    x = 335,952.67

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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.