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Finding the Fourth Proportional to 665,875.44, 998,912.61 and 245,119.32

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Solution

The fourth proportional to 665,875.44, 998,912.61 and 245,119.32 is: 367,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,875.44 : 998,912.61 = 245,119.32 : x
  2. Step 2: Convert to fraction form
    665,875.44/998,912.61 = 245,119.32/x
  3. Step 3: Cross multiply
    665,875.44x = 998,912.61 × 245,119.32
  4. Step 4: Simplify right side
    665,875.44x = 244,852,779,702.63
  5. Step 5: Solve for x
    x = 244,852,779,702.63/665,875.44
  6. Step 6: Final answer
    x = 367,715.59

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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.