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Finding the Fourth Proportional to 633,549.57, 874,298.40 and 378,900.75

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Solution

The fourth proportional to 633,549.57, 874,298.40 and 378,900.75 is: 522,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,549.57 : 874,298.40 = 378,900.75 : x
  2. Step 2: Convert to fraction form
    633,549.57/874,298.40 = 378,900.75/x
  3. Step 3: Cross multiply
    633,549.57x = 874,298.40 × 378,900.75
  4. Step 4: Simplify right side
    633,549.57x = 331,272,319,483.80
  5. Step 5: Solve for x
    x = 331,272,319,483.80/633,549.57
  6. Step 6: Final answer
    x = 522,883.03

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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.