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Finding the Fourth Proportional to 388,712.89, 583,116.06 and 367,455.25

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Solution

The fourth proportional to 388,712.89, 583,116.06 and 367,455.25 is: 551,227.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,712.89 : 583,116.06 = 367,455.25 : x
  2. Step 2: Convert to fraction form
    388,712.89/583,116.06 = 367,455.25/x
  3. Step 3: Cross multiply
    388,712.89x = 583,116.06 × 367,455.25
  4. Step 4: Simplify right side
    388,712.89x = 214,269,057,606.32
  5. Step 5: Solve for x
    x = 214,269,057,606.32/388,712.89
  6. Step 6: Final answer
    x = 551,227.04

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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.