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Finding the Fourth Proportional to 560,318.50, 773,239.53 and 305,670.70

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Solution

The fourth proportional to 560,318.50, 773,239.53 and 305,670.70 is: 421,825.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,318.50 : 773,239.53 = 305,670.70 : x
  2. Step 2: Convert to fraction form
    560,318.50/773,239.53 = 305,670.70/x
  3. Step 3: Cross multiply
    560,318.50x = 773,239.53 × 305,670.70
  4. Step 4: Simplify right side
    560,318.50x = 236,356,668,402.77
  5. Step 5: Solve for x
    x = 236,356,668,402.77/560,318.50
  6. Step 6: Final answer
    x = 421,825.57

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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.