Home / 790,456.73-1,090,830.92-427,879.47

Finding the Fourth Proportional to 790,456.73, 1,090,830.92 and 427,879.47

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Solution

The fourth proportional to 790,456.73, 1,090,830.92 and 427,879.47 is: 590,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,456.73 : 1,090,830.92 = 427,879.47 : x
  2. Step 2: Convert to fraction form
    790,456.73/1,090,830.92 = 427,879.47/x
  3. Step 3: Cross multiply
    790,456.73x = 1,090,830.92 × 427,879.47
  4. Step 4: Simplify right side
    790,456.73x = 466,744,153,769.82
  5. Step 5: Solve for x
    x = 466,744,153,769.82/790,456.73
  6. Step 6: Final answer
    x = 590,474.01

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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.