Home / 780,993.11-1,170,152.34-426,256.04

Finding the Fourth Proportional to 780,993.11, 1,170,152.34 and 426,256.04

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Solution

The fourth proportional to 780,993.11, 1,170,152.34 and 426,256.04 is: 638,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,993.11 : 1,170,152.34 = 426,256.04 : x
  2. Step 2: Convert to fraction form
    780,993.11/1,170,152.34 = 426,256.04/x
  3. Step 3: Cross multiply
    780,993.11x = 1,170,152.34 × 426,256.04
  4. Step 4: Simplify right side
    780,993.11x = 498,784,496,794.37
  5. Step 5: Solve for x
    x = 498,784,496,794.37/780,993.11
  6. Step 6: Final answer
    x = 638,654.16

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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.