Home / 324,285.39-486,439.02-87,630.12

Finding the Fourth Proportional to 324,285.39, 486,439.02 and 87,630.12

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Solution

The fourth proportional to 324,285.39, 486,439.02 and 87,630.12 is: 131,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,285.39 : 486,439.02 = 87,630.12 : x
  2. Step 2: Convert to fraction form
    324,285.39/486,439.02 = 87,630.12/x
  3. Step 3: Cross multiply
    324,285.39x = 486,439.02 × 87,630.12
  4. Step 4: Simplify right side
    324,285.39x = 42,626,709,695.28
  5. Step 5: Solve for x
    x = 42,626,709,695.28/324,285.39
  6. Step 6: Final answer
    x = 131,448.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.