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Finding the Fourth Proportional to 451,077.42, 622,486.74 and 247,135.57

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Solution

The fourth proportional to 451,077.42, 622,486.74 and 247,135.57 is: 341,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,077.42 : 622,486.74 = 247,135.57 : x
  2. Step 2: Convert to fraction form
    451,077.42/622,486.74 = 247,135.57/x
  3. Step 3: Cross multiply
    451,077.42x = 622,486.74 × 247,135.57
  4. Step 4: Simplify right side
    451,077.42x = 153,838,615,307.34
  5. Step 5: Solve for x
    x = 153,838,615,307.34/451,077.42
  6. Step 6: Final answer
    x = 341,047.03

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1.5x scale

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.