Home / 447,621.03-617,717-243,673.43

Finding the Fourth Proportional to 447,621.03, 617,717 and 243,673.43

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Solution

The fourth proportional to 447,621.03, 617,717 and 243,673.43 is: 336,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,621.03 : 617,717 = 243,673.43 : x
  2. Step 2: Convert to fraction form
    447,621.03/617,717 = 243,673.43/x
  3. Step 3: Cross multiply
    447,621.03x = 617,717 × 243,673.43
  4. Step 4: Simplify right side
    447,621.03x = 150,521,220,159.31
  5. Step 5: Solve for x
    x = 150,521,220,159.31/447,621.03
  6. Step 6: Final answer
    x = 336,269.32

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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.