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Finding the Fourth Proportional to 611,580.36, 844,008.96 and 339,649.50

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Solution

The fourth proportional to 611,580.36, 844,008.96 and 339,649.50 is: 468,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,580.36 : 844,008.96 = 339,649.50 : x
  2. Step 2: Convert to fraction form
    611,580.36/844,008.96 = 339,649.50/x
  3. Step 3: Cross multiply
    611,580.36x = 844,008.96 × 339,649.50
  4. Step 4: Simplify right side
    611,580.36x = 286,667,221,259.52
  5. Step 5: Solve for x
    x = 286,667,221,259.52/611,580.36
  6. Step 6: Final answer
    x = 468,731.90

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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.