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Finding the Fourth Proportional to 587,785.60, 881,707.20 and 307,849.60

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Solution

The fourth proportional to 587,785.60, 881,707.20 and 307,849.60 is: 461,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,785.60 : 881,707.20 = 307,849.60 : x
  2. Step 2: Convert to fraction form
    587,785.60/881,707.20 = 307,849.60/x
  3. Step 3: Cross multiply
    587,785.60x = 881,707.20 × 307,849.60
  4. Step 4: Simplify right side
    587,785.60x = 271,433,208,837.12
  5. Step 5: Solve for x
    x = 271,433,208,837.12/587,785.60
  6. Step 6: Final answer
    x = 461,789.48

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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.