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Finding the Fourth Proportional to 640,567.37, 883,988.24 and 354,092.24

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Solution

The fourth proportional to 640,567.37, 883,988.24 and 354,092.24 is: 488,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,567.37 : 883,988.24 = 354,092.24 : x
  2. Step 2: Convert to fraction form
    640,567.37/883,988.24 = 354,092.24/x
  3. Step 3: Cross multiply
    640,567.37x = 883,988.24 × 354,092.24
  4. Step 4: Simplify right side
    640,567.37x = 313,013,369,844.86
  5. Step 5: Solve for x
    x = 313,013,369,844.86/640,567.37
  6. Step 6: Final answer
    x = 488,650.20

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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.