Home / 948,555.30-1,422,835.38-387,589.80

Finding the Fourth Proportional to 948,555.30, 1,422,835.38 and 387,589.80

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Solution

The fourth proportional to 948,555.30, 1,422,835.38 and 387,589.80 is: 581,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,555.30 : 1,422,835.38 = 387,589.80 : x
  2. Step 2: Convert to fraction form
    948,555.30/1,422,835.38 = 387,589.80/x
  3. Step 3: Cross multiply
    948,555.30x = 1,422,835.38 × 387,589.80
  4. Step 4: Simplify right side
    948,555.30x = 551,476,480,367.12
  5. Step 5: Solve for x
    x = 551,476,480,367.12/948,555.30
  6. Step 6: Final answer
    x = 581,385.69

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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.