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Finding the Fourth Proportional to 633,887.87, 874,763.55 and 343,507.49

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Solution

The fourth proportional to 633,887.87, 874,763.55 and 343,507.49 is: 474,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,887.87 : 874,763.55 = 343,507.49 : x
  2. Step 2: Convert to fraction form
    633,887.87/874,763.55 = 343,507.49/x
  3. Step 3: Cross multiply
    633,887.87x = 874,763.55 × 343,507.49
  4. Step 4: Simplify right side
    633,887.87x = 300,487,827,030.17
  5. Step 5: Solve for x
    x = 300,487,827,030.17/633,887.87
  6. Step 6: Final answer
    x = 474,039.41

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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.