Home / 500,317.96-690,438.93-270,875.20

Finding the Fourth Proportional to 500,317.96, 690,438.93 and 270,875.20

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Solution

The fourth proportional to 500,317.96, 690,438.93 and 270,875.20 is: 373,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,317.96 : 690,438.93 = 270,875.20 : x
  2. Step 2: Convert to fraction form
    500,317.96/690,438.93 = 270,875.20/x
  3. Step 3: Cross multiply
    500,317.96x = 690,438.93 × 270,875.20
  4. Step 4: Simplify right side
    500,317.96x = 187,022,783,251.54
  5. Step 5: Solve for x
    x = 187,022,783,251.54/500,317.96
  6. Step 6: Final answer
    x = 373,807.85

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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.