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Finding the Fourth Proportional to 447,860.48, 617,327.12 and 302,620.92

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Solution

The fourth proportional to 447,860.48, 617,327.12 and 302,620.92 is: 417,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,860.48 : 617,327.12 = 302,620.92 : x
  2. Step 2: Convert to fraction form
    447,860.48/617,327.12 = 302,620.92/x
  3. Step 3: Cross multiply
    447,860.48x = 617,327.12 × 302,620.92
  4. Step 4: Simplify right side
    447,860.48x = 186,816,100,995.35
  5. Step 5: Solve for x
    x = 186,816,100,995.35/447,860.48
  6. Step 6: Final answer
    x = 417,130.13

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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.