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Finding the Fourth Proportional to 607,640.64, 838,487.52 and 352,988.16

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Solution

The fourth proportional to 607,640.64, 838,487.52 and 352,988.16 is: 487,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,640.64 : 838,487.52 = 352,988.16 : x
  2. Step 2: Convert to fraction form
    607,640.64/838,487.52 = 352,988.16/x
  3. Step 3: Cross multiply
    607,640.64x = 838,487.52 × 352,988.16
  4. Step 4: Simplify right side
    607,640.64x = 295,976,166,867.76
  5. Step 5: Solve for x
    x = 295,976,166,867.76/607,640.64
  6. Step 6: Final answer
    x = 487,090.80

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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.