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Finding the Fourth Proportional to 609,643.62, 841,321.72 and 347,993.58

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Solution

The fourth proportional to 609,643.62, 841,321.72 and 347,993.58 is: 480,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,643.62 : 841,321.72 = 347,993.58 : x
  2. Step 2: Convert to fraction form
    609,643.62/841,321.72 = 347,993.58/x
  3. Step 3: Cross multiply
    609,643.62x = 841,321.72 × 347,993.58
  4. Step 4: Simplify right side
    609,643.62x = 292,774,557,274.56
  5. Step 5: Solve for x
    x = 292,774,557,274.56/609,643.62
  6. Step 6: Final answer
    x = 480,238.86

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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.