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Finding the Fourth Proportional to 575,392.20, 794,051.70 and 320,715.96

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Solution

The fourth proportional to 575,392.20, 794,051.70 and 320,715.96 is: 442,593.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,392.20 : 794,051.70 = 320,715.96 : x
  2. Step 2: Convert to fraction form
    575,392.20/794,051.70 = 320,715.96/x
  3. Step 3: Cross multiply
    575,392.20x = 794,051.70 × 320,715.96
  4. Step 4: Simplify right side
    575,392.20x = 254,665,053,255.13
  5. Step 5: Solve for x
    x = 254,665,053,255.13/575,392.20
  6. Step 6: Final answer
    x = 442,593.86

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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.