Home / 790,137.56-1,090,392.73-427,561.43

Finding the Fourth Proportional to 790,137.56, 1,090,392.73 and 427,561.43

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Solution

The fourth proportional to 790,137.56, 1,090,392.73 and 427,561.43 is: 590,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,137.56 : 1,090,392.73 = 427,561.43 : x
  2. Step 2: Convert to fraction form
    790,137.56/1,090,392.73 = 427,561.43/x
  3. Step 3: Cross multiply
    790,137.56x = 1,090,392.73 × 427,561.43
  4. Step 4: Simplify right side
    790,137.56x = 466,209,868,379.54
  5. Step 5: Solve for x
    x = 466,209,868,379.54/790,137.56
  6. Step 6: Final answer
    x = 590,036.33

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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.