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Finding the Fourth Proportional to 653,485.06, 978,118.35 and 337,507.30

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Solution

The fourth proportional to 653,485.06, 978,118.35 and 337,507.30 is: 505,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,485.06 : 978,118.35 = 337,507.30 : x
  2. Step 2: Convert to fraction form
    653,485.06/978,118.35 = 337,507.30/x
  3. Step 3: Cross multiply
    653,485.06x = 978,118.35 × 337,507.30
  4. Step 4: Simplify right side
    653,485.06x = 330,122,083,388.96
  5. Step 5: Solve for x
    x = 330,122,083,388.96/653,485.06
  6. Step 6: Final answer
    x = 505,171.58

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Why These Related Problems?

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