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Finding the Fourth Proportional to 633,567.54, 874,323.24 and 378,918.78

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Solution

The fourth proportional to 633,567.54, 874,323.24 and 378,918.78 is: 522,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,567.54 : 874,323.24 = 378,918.78 : x
  2. Step 2: Convert to fraction form
    633,567.54/874,323.24 = 378,918.78/x
  3. Step 3: Cross multiply
    633,567.54x = 874,323.24 × 378,918.78
  4. Step 4: Simplify right side
    633,567.54x = 331,297,495,426.45
  5. Step 5: Solve for x
    x = 331,297,495,426.45/633,567.54
  6. Step 6: Final answer
    x = 522,907.94

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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.