Home / 500,569.92-690,836.00-285,742.26

Finding the Fourth Proportional to 500,569.92, 690,836.00 and 285,742.26

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Solution

The fourth proportional to 500,569.92, 690,836.00 and 285,742.26 is: 394,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,569.92 : 690,836.00 = 285,742.26 : x
  2. Step 2: Convert to fraction form
    500,569.92/690,836.00 = 285,742.26/x
  3. Step 3: Cross multiply
    500,569.92x = 690,836.00 × 285,742.26
  4. Step 4: Simplify right side
    500,569.92x = 197,401,038,500.65
  5. Step 5: Solve for x
    x = 197,401,038,500.65/500,569.92
  6. Step 6: Final answer
    x = 394,352.58

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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.