Home / 1,157,138.26-1,735,821.59-398,879.91

Finding the Fourth Proportional to 1,157,138.26, 1,735,821.59 and 398,879.91

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Solution

The fourth proportional to 1,157,138.26, 1,735,821.59 and 398,879.91 is: 598,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,138.26 : 1,735,821.59 = 398,879.91 : x
  2. Step 2: Convert to fraction form
    1,157,138.26/1,735,821.59 = 398,879.91/x
  3. Step 3: Cross multiply
    1,157,138.26x = 1,735,821.59 × 398,879.91
  4. Step 4: Simplify right side
    1,157,138.26x = 692,384,357,600.86
  5. Step 5: Solve for x
    x = 692,384,357,600.86/1,157,138.26
  6. Step 6: Final answer
    x = 598,359.23

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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.