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Finding the Fourth Proportional to 511,055.04, 700,147.90 and 491,900.87

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Solution

The fourth proportional to 511,055.04, 700,147.90 and 491,900.87 is: 673,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,055.04 : 700,147.90 = 491,900.87 : x
  2. Step 2: Convert to fraction form
    511,055.04/700,147.90 = 491,900.87/x
  3. Step 3: Cross multiply
    511,055.04x = 700,147.90 × 491,900.87
  4. Step 4: Simplify right side
    511,055.04x = 344,403,358,679.17
  5. Step 5: Solve for x
    x = 344,403,358,679.17/511,055.04
  6. Step 6: Final answer
    x = 673,906.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.