Home / 1,332,012.96-1,838,140.56-728,388

Finding the Fourth Proportional to 1,332,012.96, 1,838,140.56 and 728,388

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Solution

The fourth proportional to 1,332,012.96, 1,838,140.56 and 728,388 is: 1,005,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,012.96 : 1,838,140.56 = 728,388 : x
  2. Step 2: Convert to fraction form
    1,332,012.96/1,838,140.56 = 728,388/x
  3. Step 3: Cross multiply
    1,332,012.96x = 1,838,140.56 × 728,388
  4. Step 4: Simplify right side
    1,332,012.96x = 1,338,879,526,217.28
  5. Step 5: Solve for x
    x = 1,338,879,526,217.28/1,332,012.96
  6. Step 6: Final answer
    x = 1,005,155.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.