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Finding the Fourth Proportional to 892,111.60, 1,337,778.60 and 359,455.60

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Solution

The fourth proportional to 892,111.60, 1,337,778.60 and 359,455.60 is: 539,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,111.60 : 1,337,778.60 = 359,455.60 : x
  2. Step 2: Convert to fraction form
    892,111.60/1,337,778.60 = 359,455.60/x
  3. Step 3: Cross multiply
    892,111.60x = 1,337,778.60 × 359,455.60
  4. Step 4: Simplify right side
    892,111.60x = 480,872,009,330.16
  5. Step 5: Solve for x
    x = 480,872,009,330.16/892,111.60
  6. Step 6: Final answer
    x = 539,026.74

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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.