Home / 768,085.60-1,151,156.40-294,138.40

Finding the Fourth Proportional to 768,085.60, 1,151,156.40 and 294,138.40

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Solution

The fourth proportional to 768,085.60, 1,151,156.40 and 294,138.40 is: 440,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,085.60 : 1,151,156.40 = 294,138.40 : x
  2. Step 2: Convert to fraction form
    768,085.60/1,151,156.40 = 294,138.40/x
  3. Step 3: Cross multiply
    768,085.60x = 1,151,156.40 × 294,138.40
  4. Step 4: Simplify right side
    768,085.60x = 338,599,301,645.76
  5. Step 5: Solve for x
    x = 338,599,301,645.76/768,085.60
  6. Step 6: Final answer
    x = 440,835.37

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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.