Home / 447,587.13-617,678.10-243,643.91

Finding the Fourth Proportional to 447,587.13, 617,678.10 and 243,643.91

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Solution

The fourth proportional to 447,587.13, 617,678.10 and 243,643.91 is: 336,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,587.13 : 617,678.10 = 243,643.91 : x
  2. Step 2: Convert to fraction form
    447,587.13/617,678.10 = 243,643.91/x
  3. Step 3: Cross multiply
    447,587.13x = 617,678.10 × 243,643.91
  4. Step 4: Simplify right side
    447,587.13x = 150,493,504,316.98
  5. Step 5: Solve for x
    x = 150,493,504,316.98/447,587.13
  6. Step 6: Final answer
    x = 336,232.87

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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.