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Finding the Fourth Proportional to 512,210.20, 766,565.70 and 449,224.60

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Solution

The fourth proportional to 512,210.20, 766,565.70 and 449,224.60 is: 672,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,210.20 : 766,565.70 = 449,224.60 : x
  2. Step 2: Convert to fraction form
    512,210.20/766,565.70 = 449,224.60/x
  3. Step 3: Cross multiply
    512,210.20x = 766,565.70 × 449,224.60
  4. Step 4: Simplify right side
    512,210.20x = 344,360,169,956.22
  5. Step 5: Solve for x
    x = 344,360,169,956.22/512,210.20
  6. Step 6: Final answer
    x = 672,302.45

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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.