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Finding the Fourth Proportional to 560,263.30, 773,165.79 and 305,619.95

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Solution

The fourth proportional to 560,263.30, 773,165.79 and 305,619.95 is: 421,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,263.30 : 773,165.79 = 305,619.95 : x
  2. Step 2: Convert to fraction form
    560,263.30/773,165.79 = 305,619.95/x
  3. Step 3: Cross multiply
    560,263.30x = 773,165.79 × 305,619.95
  4. Step 4: Simplify right side
    560,263.30x = 236,294,892,014.43
  5. Step 5: Solve for x
    x = 236,294,892,014.43/560,263.30
  6. Step 6: Final answer
    x = 421,756.87

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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.