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Finding the Fourth Proportional to 633,824.39, 874,678.43 and 343,435.73

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Solution

The fourth proportional to 633,824.39, 874,678.43 and 343,435.73 is: 473,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,824.39 : 874,678.43 = 343,435.73 : x
  2. Step 2: Convert to fraction form
    633,824.39/874,678.43 = 343,435.73/x
  3. Step 3: Cross multiply
    633,824.39x = 874,678.43 × 343,435.73
  4. Step 4: Simplify right side
    633,824.39x = 300,395,819,031.73
  5. Step 5: Solve for x
    x = 300,395,819,031.73/633,824.39
  6. Step 6: Final answer
    x = 473,941.72

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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.