Home / 542,370.44-748,477.30-309,828.18

Finding the Fourth Proportional to 542,370.44, 748,477.30 and 309,828.18

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Solution

The fourth proportional to 542,370.44, 748,477.30 and 309,828.18 is: 427,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,370.44 : 748,477.30 = 309,828.18 : x
  2. Step 2: Convert to fraction form
    542,370.44/748,477.30 = 309,828.18/x
  3. Step 3: Cross multiply
    542,370.44x = 748,477.30 × 309,828.18
  4. Step 4: Simplify right side
    542,370.44x = 231,899,354,338.79
  5. Step 5: Solve for x
    x = 231,899,354,338.79/542,370.44
  6. Step 6: Final answer
    x = 427,566.36

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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.