Home / 781,572.86-1,171,746.82-308,612.24

Finding the Fourth Proportional to 781,572.86, 1,171,746.82 and 308,612.24

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Solution

The fourth proportional to 781,572.86, 1,171,746.82 and 308,612.24 is: 462,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,572.86 : 1,171,746.82 = 308,612.24 : x
  2. Step 2: Convert to fraction form
    781,572.86/1,171,746.82 = 308,612.24/x
  3. Step 3: Cross multiply
    781,572.86x = 1,171,746.82 × 308,612.24
  4. Step 4: Simplify right side
    781,572.86x = 361,615,410,833.08
  5. Step 5: Solve for x
    x = 361,615,410,833.08/781,572.86
  6. Step 6: Final answer
    x = 462,676.52

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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.