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Finding the Fourth Proportional to 549,414.60, 823,085.10 and 512,089.80

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Solution

The fourth proportional to 549,414.60, 823,085.10 and 512,089.80 is: 767,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,414.60 : 823,085.10 = 512,089.80 : x
  2. Step 2: Convert to fraction form
    549,414.60/823,085.10 = 512,089.80/x
  3. Step 3: Cross multiply
    549,414.60x = 823,085.10 × 512,089.80
  4. Step 4: Simplify right side
    549,414.60x = 421,493,484,241.98
  5. Step 5: Solve for x
    x = 421,493,484,241.98/549,414.60
  6. Step 6: Final answer
    x = 767,168.34

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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.