Home / 940,135.68-1,409,904.36-308,903.76

Finding the Fourth Proportional to 940,135.68, 1,409,904.36 and 308,903.76

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Solution

The fourth proportional to 940,135.68, 1,409,904.36 and 308,903.76 is: 463,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,135.68 : 1,409,904.36 = 308,903.76 : x
  2. Step 2: Convert to fraction form
    940,135.68/1,409,904.36 = 308,903.76/x
  3. Step 3: Cross multiply
    940,135.68x = 1,409,904.36 × 308,903.76
  4. Step 4: Simplify right side
    940,135.68x = 435,524,758,044.39
  5. Step 5: Solve for x
    x = 435,524,758,044.39/940,135.68
  6. Step 6: Final answer
    x = 463,257.34

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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.