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Finding the Fourth Proportional to 463,612.80, 639,157.44 and 396,352.24

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Solution

The fourth proportional to 463,612.80, 639,157.44 and 396,352.24 is: 546,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,612.80 : 639,157.44 = 396,352.24 : x
  2. Step 2: Convert to fraction form
    463,612.80/639,157.44 = 396,352.24/x
  3. Step 3: Cross multiply
    463,612.80x = 639,157.44 × 396,352.24
  4. Step 4: Simplify right side
    463,612.80x = 253,331,483,056.67
  5. Step 5: Solve for x
    x = 253,331,483,056.67/463,612.80
  6. Step 6: Final answer
    x = 546,429.01

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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.