Home / 663,074.19-988,360.54-629,416.26

Finding the Fourth Proportional to 663,074.19, 988,360.54 and 629,416.26

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Solution

The fourth proportional to 663,074.19, 988,360.54 and 629,416.26 is: 938,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,074.19 : 988,360.54 = 629,416.26 : x
  2. Step 2: Convert to fraction form
    663,074.19/988,360.54 = 629,416.26/x
  3. Step 3: Cross multiply
    663,074.19x = 988,360.54 × 629,416.26
  4. Step 4: Simplify right side
    663,074.19x = 622,090,193,044.84
  5. Step 5: Solve for x
    x = 622,090,193,044.84/663,074.19
  6. Step 6: Final answer
    x = 938,190.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.