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Finding the Fourth Proportional to 565,481.04, 780,147.44 and 418,655.60

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Solution

The fourth proportional to 565,481.04, 780,147.44 and 418,655.60 is: 577,584.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,481.04 : 780,147.44 = 418,655.60 : x
  2. Step 2: Convert to fraction form
    565,481.04/780,147.44 = 418,655.60/x
  3. Step 3: Cross multiply
    565,481.04x = 780,147.44 × 418,655.60
  4. Step 4: Simplify right side
    565,481.04x = 326,613,094,581.66
  5. Step 5: Solve for x
    x = 326,613,094,581.66/565,481.04
  6. Step 6: Final answer
    x = 577,584.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.