Home / 726,971.60-1,090,379.64-253,665.92

Finding the Fourth Proportional to 726,971.60, 1,090,379.64 and 253,665.92

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Solution

The fourth proportional to 726,971.60, 1,090,379.64 and 253,665.92 is: 380,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,971.60 : 1,090,379.64 = 253,665.92 : x
  2. Step 2: Convert to fraction form
    726,971.60/1,090,379.64 = 253,665.92/x
  3. Step 3: Cross multiply
    726,971.60x = 1,090,379.64 × 253,665.92
  4. Step 4: Simplify right side
    726,971.60x = 276,592,154,529.87
  5. Step 5: Solve for x
    x = 276,592,154,529.87/726,971.60
  6. Step 6: Final answer
    x = 380,471.75

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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.