Home / 780,913.09-1,170,032.83-426,176.22

Finding the Fourth Proportional to 780,913.09, 1,170,032.83 and 426,176.22

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Solution

The fourth proportional to 780,913.09, 1,170,032.83 and 426,176.22 is: 638,534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,913.09 : 1,170,032.83 = 426,176.22 : x
  2. Step 2: Convert to fraction form
    780,913.09/1,170,032.83 = 426,176.22/x
  3. Step 3: Cross multiply
    780,913.09x = 1,170,032.83 × 426,176.22
  4. Step 4: Simplify right side
    780,913.09x = 498,640,168,765.30
  5. Step 5: Solve for x
    x = 498,640,168,765.30/780,913.09
  6. Step 6: Final answer
    x = 638,534.78

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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.