Home / 857,190.62-1,285,785.96-288,524.10

Finding the Fourth Proportional to 857,190.62, 1,285,785.96 and 288,524.10

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Solution

The fourth proportional to 857,190.62, 1,285,785.96 and 288,524.10 is: 432,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,190.62 : 1,285,785.96 = 288,524.10 : x
  2. Step 2: Convert to fraction form
    857,190.62/1,285,785.96 = 288,524.10/x
  3. Step 3: Cross multiply
    857,190.62x = 1,285,785.96 × 288,524.10
  4. Step 4: Simplify right side
    857,190.62x = 370,980,240,641.37
  5. Step 5: Solve for x
    x = 370,980,240,641.37/857,190.62
  6. Step 6: Final answer
    x = 432,786.16

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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.