Home / 500,077.25-690,110.91-285,228.19

Finding the Fourth Proportional to 500,077.25, 690,110.91 and 285,228.19

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Solution

The fourth proportional to 500,077.25, 690,110.91 and 285,228.19 is: 393,617.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,077.25 : 690,110.91 = 285,228.19 : x
  2. Step 2: Convert to fraction form
    500,077.25/690,110.91 = 285,228.19/x
  3. Step 3: Cross multiply
    500,077.25x = 690,110.91 × 285,228.19
  4. Step 4: Simplify right side
    500,077.25x = 196,839,085,551.59
  5. Step 5: Solve for x
    x = 196,839,085,551.59/500,077.25
  6. Step 6: Final answer
    x = 393,617.36

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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.