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Finding the Fourth Proportional to 549,347.51, 825,284.13 and 387,613.80

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Solution

The fourth proportional to 549,347.51, 825,284.13 and 387,613.80 is: 582,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,347.51 : 825,284.13 = 387,613.80 : x
  2. Step 2: Convert to fraction form
    549,347.51/825,284.13 = 387,613.80/x
  3. Step 3: Cross multiply
    549,347.51x = 825,284.13 × 387,613.80
  4. Step 4: Simplify right side
    549,347.51x = 319,891,515,770.93
  5. Step 5: Solve for x
    x = 319,891,515,770.93/549,347.51
  6. Step 6: Final answer
    x = 582,311.76

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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.