Home / 3,128,023.90-4,692,035.85-1,330,455.70

Finding the Fourth Proportional to 3,128,023.90, 4,692,035.85 and 1,330,455.70

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Solution

The fourth proportional to 3,128,023.90, 4,692,035.85 and 1,330,455.70 is: 1,995,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,023.90 : 4,692,035.85 = 1,330,455.70 : x
  2. Step 2: Convert to fraction form
    3,128,023.90/4,692,035.85 = 1,330,455.70/x
  3. Step 3: Cross multiply
    3,128,023.90x = 4,692,035.85 × 1,330,455.70
  4. Step 4: Simplify right side
    3,128,023.90x = 6,242,545,841,236.85
  5. Step 5: Solve for x
    x = 6,242,545,841,236.85/3,128,023.90
  6. Step 6: Final answer
    x = 1,995,683.55

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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.