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Finding the Fourth Proportional to 668,905.60, 923,085.06 and 362,974.21

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Solution

The fourth proportional to 668,905.60, 923,085.06 and 362,974.21 is: 500,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,905.60 : 923,085.06 = 362,974.21 : x
  2. Step 2: Convert to fraction form
    668,905.60/923,085.06 = 362,974.21/x
  3. Step 3: Cross multiply
    668,905.60x = 923,085.06 × 362,974.21
  4. Step 4: Simplify right side
    668,905.60x = 335,056,070,416.30
  5. Step 5: Solve for x
    x = 335,056,070,416.30/668,905.60
  6. Step 6: Final answer
    x = 500,901.88

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1.5x scale

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.