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Finding the Fourth Proportional to 486,522.30, 729,783.45 and 352,775.10

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Solution

The fourth proportional to 486,522.30, 729,783.45 and 352,775.10 is: 529,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,522.30 : 729,783.45 = 352,775.10 : x
  2. Step 2: Convert to fraction form
    486,522.30/729,783.45 = 352,775.10/x
  3. Step 3: Cross multiply
    486,522.30x = 729,783.45 × 352,775.10
  4. Step 4: Simplify right side
    486,522.30x = 257,449,429,552.10
  5. Step 5: Solve for x
    x = 257,449,429,552.10/486,522.30
  6. Step 6: Final answer
    x = 529,162.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.