Home / 840,879.58-1,260,569.22-308,276.26

Finding the Fourth Proportional to 840,879.58, 1,260,569.22 and 308,276.26

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Solution

The fourth proportional to 840,879.58, 1,260,569.22 and 308,276.26 is: 462,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,879.58 : 1,260,569.22 = 308,276.26 : x
  2. Step 2: Convert to fraction form
    840,879.58/1,260,569.22 = 308,276.26/x
  3. Step 3: Cross multiply
    840,879.58x = 1,260,569.22 × 308,276.26
  4. Step 4: Simplify right side
    840,879.58x = 388,603,564,612.72
  5. Step 5: Solve for x
    x = 388,603,564,612.72/840,879.58
  6. Step 6: Final answer
    x = 462,139.38

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Similar ratio
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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.