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Finding the Fourth Proportional to 865,704.60, 1,298,556.90 and 706,272.30

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Solution

The fourth proportional to 865,704.60, 1,298,556.90 and 706,272.30 is: 1,059,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,704.60 : 1,298,556.90 = 706,272.30 : x
  2. Step 2: Convert to fraction form
    865,704.60/1,298,556.90 = 706,272.30/x
  3. Step 3: Cross multiply
    865,704.60x = 1,298,556.90 × 706,272.30
  4. Step 4: Simplify right side
    865,704.60x = 917,134,768,443.87
  5. Step 5: Solve for x
    x = 917,134,768,443.87/865,704.60
  6. Step 6: Final answer
    x = 1,059,408.45

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Similar ratio
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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.