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Finding the Fourth Proportional to 447,389.62, 617,388.51 and 243,444.58

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Solution

The fourth proportional to 447,389.62, 617,388.51 and 243,444.58 is: 335,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,389.62 : 617,388.51 = 243,444.58 : x
  2. Step 2: Convert to fraction form
    447,389.62/617,388.51 = 243,444.58/x
  3. Step 3: Cross multiply
    447,389.62x = 617,388.51 × 243,444.58
  4. Step 4: Simplify right side
    447,389.62x = 150,299,884,970.31
  5. Step 5: Solve for x
    x = 150,299,884,970.31/447,389.62
  6. Step 6: Final answer
    x = 335,948.53

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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.