Home / 769,791.60-1,152,500.40-727,898.40

Finding the Fourth Proportional to 769,791.60, 1,152,500.40 and 727,898.40

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Solution

The fourth proportional to 769,791.60, 1,152,500.40 and 727,898.40 is: 1,089,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,791.60 : 1,152,500.40 = 727,898.40 : x
  2. Step 2: Convert to fraction form
    769,791.60/1,152,500.40 = 727,898.40/x
  3. Step 3: Cross multiply
    769,791.60x = 1,152,500.40 × 727,898.40
  4. Step 4: Simplify right side
    769,791.60x = 838,903,197,159.36
  5. Step 5: Solve for x
    x = 838,903,197,159.36/769,791.60
  6. Step 6: Final answer
    x = 1,089,779.62

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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.