Home / 852,856.20-1,278,938.70-291,601.80

Finding the Fourth Proportional to 852,856.20, 1,278,938.70 and 291,601.80

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Solution

The fourth proportional to 852,856.20, 1,278,938.70 and 291,601.80 is: 437,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,856.20 : 1,278,938.70 = 291,601.80 : x
  2. Step 2: Convert to fraction form
    852,856.20/1,278,938.70 = 291,601.80/x
  3. Step 3: Cross multiply
    852,856.20x = 1,278,938.70 × 291,601.80
  4. Step 4: Simplify right side
    852,856.20x = 372,940,827,009.66
  5. Step 5: Solve for x
    x = 372,940,827,009.66/852,856.20
  6. Step 6: Final answer
    x = 437,284.54

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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.