Home / 790,185.05-1,090,455.35-427,608.90

Finding the Fourth Proportional to 790,185.05, 1,090,455.35 and 427,608.90

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Solution

The fourth proportional to 790,185.05, 1,090,455.35 and 427,608.90 is: 590,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,185.05 : 1,090,455.35 = 427,608.90 : x
  2. Step 2: Convert to fraction form
    790,185.05/1,090,455.35 = 427,608.90/x
  3. Step 3: Cross multiply
    790,185.05x = 1,090,455.35 × 427,608.90
  4. Step 4: Simplify right side
    790,185.05x = 466,288,414,663.78
  5. Step 5: Solve for x
    x = 466,288,414,663.78/790,185.05
  6. Step 6: Final answer
    x = 590,100.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.