Home / 790,201.74-1,090,478.34-427,625.54

Finding the Fourth Proportional to 790,201.74, 1,090,478.34 and 427,625.54

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Solution

The fourth proportional to 790,201.74, 1,090,478.34 and 427,625.54 is: 590,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,201.74 : 1,090,478.34 = 427,625.54 : x
  2. Step 2: Convert to fraction form
    790,201.74/1,090,478.34 = 427,625.54/x
  3. Step 3: Cross multiply
    790,201.74x = 1,090,478.34 × 427,625.54
  4. Step 4: Simplify right side
    790,201.74x = 466,316,389,000.80
  5. Step 5: Solve for x
    x = 466,316,389,000.80/790,201.74
  6. Step 6: Final answer
    x = 590,123.21

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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.