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Finding the Fourth Proportional to 610,809.64, 842,957.17 and 352,697.47

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Solution

The fourth proportional to 610,809.64, 842,957.17 and 352,697.47 is: 486,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,809.64 : 842,957.17 = 352,697.47 : x
  2. Step 2: Convert to fraction form
    610,809.64/842,957.17 = 352,697.47/x
  3. Step 3: Cross multiply
    610,809.64x = 842,957.17 × 352,697.47
  4. Step 4: Simplify right side
    610,809.64x = 297,308,858,188.22
  5. Step 5: Solve for x
    x = 297,308,858,188.22/610,809.64
  6. Step 6: Final answer
    x = 486,745.53

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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.