Home / 447,856.48-617,321.60-302,616.90

Finding the Fourth Proportional to 447,856.48, 617,321.60 and 302,616.90

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Solution

The fourth proportional to 447,856.48, 617,321.60 and 302,616.90 is: 417,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,856.48 : 617,321.60 = 302,616.90 : x
  2. Step 2: Convert to fraction form
    447,856.48/617,321.60 = 302,616.90/x
  3. Step 3: Cross multiply
    447,856.48x = 617,321.60 × 302,616.90
  4. Step 4: Simplify right side
    447,856.48x = 186,811,950,438.34
  5. Step 5: Solve for x
    x = 186,811,950,438.34/447,856.48
  6. Step 6: Final answer
    x = 417,124.59

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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.