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Finding the Fourth Proportional to 440,268, 607,569.84 and 239,064

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Solution

The fourth proportional to 440,268, 607,569.84 and 239,064 is: 329,908.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,268 : 607,569.84 = 239,064 : x
  2. Step 2: Convert to fraction form
    440,268/607,569.84 = 239,064/x
  3. Step 3: Cross multiply
    440,268x = 607,569.84 × 239,064
  4. Step 4: Simplify right side
    440,268x = 145,248,076,229.76
  5. Step 5: Solve for x
    x = 145,248,076,229.76/440,268
  6. Step 6: Final answer
    x = 329,908.32

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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.