Home / 500,276.86-690,389.67-273,943.42

Finding the Fourth Proportional to 500,276.86, 690,389.67 and 273,943.42

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Solution

The fourth proportional to 500,276.86, 690,389.67 and 273,943.42 is: 378,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,276.86 : 690,389.67 = 273,943.42 : x
  2. Step 2: Convert to fraction form
    500,276.86/690,389.67 = 273,943.42/x
  3. Step 3: Cross multiply
    500,276.86x = 690,389.67 × 273,943.42
  4. Step 4: Simplify right side
    500,276.86x = 189,127,707,332.47
  5. Step 5: Solve for x
    x = 189,127,707,332.47/500,276.86
  6. Step 6: Final answer
    x = 378,046.08

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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.