Home / 780,919.80-1,170,602.10-359,460.60

Finding the Fourth Proportional to 780,919.80, 1,170,602.10 and 359,460.60

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Solution

The fourth proportional to 780,919.80, 1,170,602.10 and 359,460.60 is: 538,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,919.80 : 1,170,602.10 = 359,460.60 : x
  2. Step 2: Convert to fraction form
    780,919.80/1,170,602.10 = 359,460.60/x
  3. Step 3: Cross multiply
    780,919.80x = 1,170,602.10 × 359,460.60
  4. Step 4: Simplify right side
    780,919.80x = 420,785,333,227.26
  5. Step 5: Solve for x
    x = 420,785,333,227.26/780,919.80
  6. Step 6: Final answer
    x = 538,832.97

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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.