Home / 451,020.42-622,261.74-307,531.35

Finding the Fourth Proportional to 451,020.42, 622,261.74 and 307,531.35

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Solution

The fourth proportional to 451,020.42, 622,261.74 and 307,531.35 is: 424,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,020.42 : 622,261.74 = 307,531.35 : x
  2. Step 2: Convert to fraction form
    451,020.42/622,261.74 = 307,531.35/x
  3. Step 3: Cross multiply
    451,020.42x = 622,261.74 × 307,531.35
  4. Step 4: Simplify right side
    451,020.42x = 191,364,994,108.79
  5. Step 5: Solve for x
    x = 191,364,994,108.79/451,020.42
  6. Step 6: Final answer
    x = 424,293.41

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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.