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Finding the Fourth Proportional to 615,003.89, 848,726.46 and 356,861.34

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Solution

The fourth proportional to 615,003.89, 848,726.46 and 356,861.34 is: 492,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,003.89 : 848,726.46 = 356,861.34 : x
  2. Step 2: Convert to fraction form
    615,003.89/848,726.46 = 356,861.34/x
  3. Step 3: Cross multiply
    615,003.89x = 848,726.46 × 356,861.34
  4. Step 4: Simplify right side
    615,003.89x = 302,877,661,809.06
  5. Step 5: Solve for x
    x = 302,877,661,809.06/615,003.89
  6. Step 6: Final answer
    x = 492,480.89

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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.