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Finding the Fourth Proportional to 536,669.60, 805,004.40 and 347,712.80

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Solution

The fourth proportional to 536,669.60, 805,004.40 and 347,712.80 is: 521,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,669.60 : 805,004.40 = 347,712.80 : x
  2. Step 2: Convert to fraction form
    536,669.60/805,004.40 = 347,712.80/x
  3. Step 3: Cross multiply
    536,669.60x = 805,004.40 × 347,712.80
  4. Step 4: Simplify right side
    536,669.60x = 279,910,333,936.32
  5. Step 5: Solve for x
    x = 279,910,333,936.32/536,669.60
  6. Step 6: Final answer
    x = 521,569.20

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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.