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Finding the Fourth Proportional to 560,209.77, 773,085.87 and 318,492.45

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Solution

The fourth proportional to 560,209.77, 773,085.87 and 318,492.45 is: 439,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,209.77 : 773,085.87 = 318,492.45 : x
  2. Step 2: Convert to fraction form
    560,209.77/773,085.87 = 318,492.45/x
  3. Step 3: Cross multiply
    560,209.77x = 773,085.87 × 318,492.45
  4. Step 4: Simplify right side
    560,209.77x = 246,222,012,796.68
  5. Step 5: Solve for x
    x = 246,222,012,796.68/560,209.77
  6. Step 6: Final answer
    x = 439,517.53

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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.