Home / 447,621.28-617,717.35-243,673.68

Finding the Fourth Proportional to 447,621.28, 617,717.35 and 243,673.68

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Solution

The fourth proportional to 447,621.28, 617,717.35 and 243,673.68 is: 336,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,621.28 : 617,717.35 = 243,673.68 : x
  2. Step 2: Convert to fraction form
    447,621.28/617,717.35 = 243,673.68/x
  3. Step 3: Cross multiply
    447,621.28x = 617,717.35 × 243,673.68
  4. Step 4: Simplify right side
    447,621.28x = 150,521,459,874.35
  5. Step 5: Solve for x
    x = 150,521,459,874.35/447,621.28
  6. Step 6: Final answer
    x = 336,269.67

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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.