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Finding the Fourth Proportional to 549,415.60, 823,086.60 and 512,090.80

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Solution

The fourth proportional to 549,415.60, 823,086.60 and 512,090.80 is: 767,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,415.60 : 823,086.60 = 512,090.80 : x
  2. Step 2: Convert to fraction form
    549,415.60/823,086.60 = 512,090.80/x
  3. Step 3: Cross multiply
    549,415.60x = 823,086.60 × 512,090.80
  4. Step 4: Simplify right side
    549,415.60x = 421,495,075,463.28
  5. Step 5: Solve for x
    x = 421,495,075,463.28/549,415.60
  6. Step 6: Final answer
    x = 767,169.84

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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.