Home / 728,629.40-1,092,944.10-490,683.80

Finding the Fourth Proportional to 728,629.40, 1,092,944.10 and 490,683.80

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Solution

The fourth proportional to 728,629.40, 1,092,944.10 and 490,683.80 is: 736,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,629.40 : 1,092,944.10 = 490,683.80 : x
  2. Step 2: Convert to fraction form
    728,629.40/1,092,944.10 = 490,683.80/x
  3. Step 3: Cross multiply
    728,629.40x = 1,092,944.10 × 490,683.80
  4. Step 4: Simplify right side
    728,629.40x = 536,289,964,175.58
  5. Step 5: Solve for x
    x = 536,289,964,175.58/728,629.40
  6. Step 6: Final answer
    x = 736,025.70

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1.5x scale

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.