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Finding the Fourth Proportional to 666,492.27, 919,755.48 and 360,567.69

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Solution

The fourth proportional to 666,492.27, 919,755.48 and 360,567.69 is: 497,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,492.27 : 919,755.48 = 360,567.69 : x
  2. Step 2: Convert to fraction form
    666,492.27/919,755.48 = 360,567.69/x
  3. Step 3: Cross multiply
    666,492.27x = 919,755.48 × 360,567.69
  4. Step 4: Simplify right side
    666,492.27x = 331,634,108,788.44
  5. Step 5: Solve for x
    x = 331,634,108,788.44/666,492.27
  6. Step 6: Final answer
    x = 497,581.33

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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.