Home / 857,462.51-1,286,691.99-384,147.86

Finding the Fourth Proportional to 857,462.51, 1,286,691.99 and 384,147.86

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Solution

The fourth proportional to 857,462.51, 1,286,691.99 and 384,147.86 is: 576,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,462.51 : 1,286,691.99 = 384,147.86 : x
  2. Step 2: Convert to fraction form
    857,462.51/1,286,691.99 = 384,147.86/x
  3. Step 3: Cross multiply
    857,462.51x = 1,286,691.99 × 384,147.86
  4. Step 4: Simplify right side
    857,462.51x = 494,279,977,654.37
  5. Step 5: Solve for x
    x = 494,279,977,654.37/857,462.51
  6. Step 6: Final answer
    x = 576,445.00

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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.