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Finding the Fourth Proportional to 652,076.56, 978,002.70 and 172,309.60

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Solution

The fourth proportional to 652,076.56, 978,002.70 and 172,309.60 is: 258,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,076.56 : 978,002.70 = 172,309.60 : x
  2. Step 2: Convert to fraction form
    652,076.56/978,002.70 = 172,309.60/x
  3. Step 3: Cross multiply
    652,076.56x = 978,002.70 × 172,309.60
  4. Step 4: Simplify right side
    652,076.56x = 168,519,254,035.92
  5. Step 5: Solve for x
    x = 168,519,254,035.92/652,076.56
  6. Step 6: Final answer
    x = 258,434.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.