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Finding the Fourth Proportional to 640,167.94, 883,356.46 and 353,670.94

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Solution

The fourth proportional to 640,167.94, 883,356.46 and 353,670.94 is: 488,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,167.94 : 883,356.46 = 353,670.94 : x
  2. Step 2: Convert to fraction form
    640,167.94/883,356.46 = 353,670.94/x
  3. Step 3: Cross multiply
    640,167.94x = 883,356.46 × 353,670.94
  4. Step 4: Simplify right side
    640,167.94x = 312,417,509,563.27
  5. Step 5: Solve for x
    x = 312,417,509,563.27/640,167.94
  6. Step 6: Final answer
    x = 488,024.30

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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.