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Finding the Fourth Proportional to 384,804.40, 577,984.20 and 371,585.20

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Solution

The fourth proportional to 384,804.40, 577,984.20 and 371,585.20 is: 558,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,804.40 : 577,984.20 = 371,585.20 : x
  2. Step 2: Convert to fraction form
    384,804.40/577,984.20 = 371,585.20/x
  3. Step 3: Cross multiply
    384,804.40x = 577,984.20 × 371,585.20
  4. Step 4: Simplify right side
    384,804.40x = 214,770,374,553.84
  5. Step 5: Solve for x
    x = 214,770,374,553.84/384,804.40
  6. Step 6: Final answer
    x = 558,128.69

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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.