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Finding the Fourth Proportional to 560,392.94, 773,310.56 and 318,734.30

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Solution

The fourth proportional to 560,392.94, 773,310.56 and 318,734.30 is: 439,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,392.94 : 773,310.56 = 318,734.30 : x
  2. Step 2: Convert to fraction form
    560,392.94/773,310.56 = 318,734.30/x
  3. Step 3: Cross multiply
    560,392.94x = 773,310.56 × 318,734.30
  4. Step 4: Simplify right side
    560,392.94x = 246,480,600,024.21
  5. Step 5: Solve for x
    x = 246,480,600,024.21/560,392.94
  6. Step 6: Final answer
    x = 439,835.31

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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.