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Finding the Fourth Proportional to 626,720.66, 864,874.53 and 340,240.34

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Solution

The fourth proportional to 626,720.66, 864,874.53 and 340,240.34 is: 469,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,720.66 : 864,874.53 = 340,240.34 : x
  2. Step 2: Convert to fraction form
    626,720.66/864,874.53 = 340,240.34/x
  3. Step 3: Cross multiply
    626,720.66x = 864,874.53 × 340,240.34
  4. Step 4: Simplify right side
    626,720.66x = 294,265,204,144.54
  5. Step 5: Solve for x
    x = 294,265,204,144.54/626,720.66
  6. Step 6: Final answer
    x = 469,531.68

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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.