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Finding the Fourth Proportional to 609,795.38, 841,810.14 and 428,662.58

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Solution

The fourth proportional to 609,795.38, 841,810.14 and 428,662.58 is: 591,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,795.38 : 841,810.14 = 428,662.58 : x
  2. Step 2: Convert to fraction form
    609,795.38/841,810.14 = 428,662.58/x
  3. Step 3: Cross multiply
    609,795.38x = 841,810.14 × 428,662.58
  4. Step 4: Simplify right side
    609,795.38x = 360,852,502,273.51
  5. Step 5: Solve for x
    x = 360,852,502,273.51/609,795.38
  6. Step 6: Final answer
    x = 591,759.99

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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.