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Finding the Fourth Proportional to 560,118.34, 772,932.61 and 318,367.38

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Solution

The fourth proportional to 560,118.34, 772,932.61 and 318,367.38 is: 439,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,118.34 : 772,932.61 = 318,367.38 : x
  2. Step 2: Convert to fraction form
    560,118.34/772,932.61 = 318,367.38/x
  3. Step 3: Cross multiply
    560,118.34x = 772,932.61 × 318,367.38
  4. Step 4: Simplify right side
    560,118.34x = 246,076,529,962.26
  5. Step 5: Solve for x
    x = 246,076,529,962.26/560,118.34
  6. Step 6: Final answer
    x = 439,329.54

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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.