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Finding the Fourth Proportional to 578,316.60, 798,076.80 and 323,667.80

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Solution

The fourth proportional to 578,316.60, 798,076.80 and 323,667.80 is: 446,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,316.60 : 798,076.80 = 323,667.80 : x
  2. Step 2: Convert to fraction form
    578,316.60/798,076.80 = 323,667.80/x
  3. Step 3: Cross multiply
    578,316.60x = 798,076.80 × 323,667.80
  4. Step 4: Simplify right side
    578,316.60x = 258,311,758,096.66
  5. Step 5: Solve for x
    x = 258,311,758,096.66/578,316.60
  6. Step 6: Final answer
    x = 446,661.50

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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.