Home / 447,389.49-617,388.34-243,444.45

Finding the Fourth Proportional to 447,389.49, 617,388.34 and 243,444.45

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Solution

The fourth proportional to 447,389.49, 617,388.34 and 243,444.45 is: 335,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,389.49 : 617,388.34 = 243,444.45 : x
  2. Step 2: Convert to fraction form
    447,389.49/617,388.34 = 243,444.45/x
  3. Step 3: Cross multiply
    447,389.49x = 617,388.34 × 243,444.45
  4. Step 4: Simplify right side
    447,389.49x = 150,299,764,867.71
  5. Step 5: Solve for x
    x = 150,299,764,867.71/447,389.49
  6. Step 6: Final answer
    x = 335,948.36

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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.