Home / 500,318.09-690,439.10-270,875.33

Finding the Fourth Proportional to 500,318.09, 690,439.10 and 270,875.33

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Solution

The fourth proportional to 500,318.09, 690,439.10 and 270,875.33 is: 373,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,318.09 : 690,439.10 = 270,875.33 : x
  2. Step 2: Convert to fraction form
    500,318.09/690,439.10 = 270,875.33/x
  3. Step 3: Cross multiply
    500,318.09x = 690,439.10 × 270,875.33
  4. Step 4: Simplify right side
    500,318.09x = 187,022,914,250.83
  5. Step 5: Solve for x
    x = 187,022,914,250.83/500,318.09
  6. Step 6: Final answer
    x = 373,808.02

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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.