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Finding the Fourth Proportional to 666,627.84, 919,939.82 and 360,697.46

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Solution

The fourth proportional to 666,627.84, 919,939.82 and 360,697.46 is: 497,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,627.84 : 919,939.82 = 360,697.46 : x
  2. Step 2: Convert to fraction form
    666,627.84/919,939.82 = 360,697.46/x
  3. Step 3: Cross multiply
    666,627.84x = 919,939.82 × 360,697.46
  4. Step 4: Simplify right side
    666,627.84x = 331,819,950,023.67
  5. Step 5: Solve for x
    x = 331,819,950,023.67/666,627.84
  6. Step 6: Final answer
    x = 497,758.91

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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.