Home / 500,287.86-690,390.18-273,933.36

Finding the Fourth Proportional to 500,287.86, 690,390.18 and 273,933.36

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Solution

The fourth proportional to 500,287.86, 690,390.18 and 273,933.36 is: 378,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,287.86 : 690,390.18 = 273,933.36 : x
  2. Step 2: Convert to fraction form
    500,287.86/690,390.18 = 273,933.36/x
  3. Step 3: Cross multiply
    500,287.86x = 690,390.18 × 273,933.36
  4. Step 4: Simplify right side
    500,287.86x = 189,120,901,718.41
  5. Step 5: Solve for x
    x = 189,120,901,718.41/500,287.86
  6. Step 6: Final answer
    x = 378,024.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.