Home / 958,855.60-1,438,801.80-426,458.80

Finding the Fourth Proportional to 958,855.60, 1,438,801.80 and 426,458.80

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Solution

The fourth proportional to 958,855.60, 1,438,801.80 and 426,458.80 is: 639,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,855.60 : 1,438,801.80 = 426,458.80 : x
  2. Step 2: Convert to fraction form
    958,855.60/1,438,801.80 = 426,458.80/x
  3. Step 3: Cross multiply
    958,855.60x = 1,438,801.80 × 426,458.80
  4. Step 4: Simplify right side
    958,855.60x = 613,589,689,065.84
  5. Step 5: Solve for x
    x = 613,589,689,065.84/958,855.60
  6. Step 6: Final answer
    x = 639,918.76

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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.