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Finding the Fourth Proportional to 640,970.34, 960,777.54 and 241,438.25

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Solution

The fourth proportional to 640,970.34, 960,777.54 and 241,438.25 is: 361,901.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,970.34 : 960,777.54 = 241,438.25 : x
  2. Step 2: Convert to fraction form
    640,970.34/960,777.54 = 241,438.25/x
  3. Step 3: Cross multiply
    640,970.34x = 960,777.54 × 241,438.25
  4. Step 4: Simplify right side
    640,970.34x = 231,968,443,093.02
  5. Step 5: Solve for x
    x = 231,968,443,093.02/640,970.34
  6. Step 6: Final answer
    x = 361,901.99

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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.