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Finding the Fourth Proportional to 666,461.46, 919,714.79 and 360,537.75

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Solution

The fourth proportional to 666,461.46, 919,714.79 and 360,537.75 is: 497,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,461.46 : 919,714.79 = 360,537.75 : x
  2. Step 2: Convert to fraction form
    666,461.46/919,714.79 = 360,537.75/x
  3. Step 3: Cross multiply
    666,461.46x = 919,714.79 × 360,537.75
  4. Step 4: Simplify right side
    666,461.46x = 331,591,901,028.32
  5. Step 5: Solve for x
    x = 331,591,901,028.32/666,461.46
  6. Step 6: Final answer
    x = 497,541.00

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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.