Home / 500,048.20-689,894.94-285,033.16

Finding the Fourth Proportional to 500,048.20, 689,894.94 and 285,033.16

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Solution

The fourth proportional to 500,048.20, 689,894.94 and 285,033.16 is: 393,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,048.20 : 689,894.94 = 285,033.16 : x
  2. Step 2: Convert to fraction form
    500,048.20/689,894.94 = 285,033.16/x
  3. Step 3: Cross multiply
    500,048.20x = 689,894.94 × 285,033.16
  4. Step 4: Simplify right side
    500,048.20x = 196,642,934,816.21
  5. Step 5: Solve for x
    x = 196,642,934,816.21/500,048.20
  6. Step 6: Final answer
    x = 393,247.96

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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.