Home / 908,219.50-1,253,342.94-505,811.50

Finding the Fourth Proportional to 908,219.50, 1,253,342.94 and 505,811.50

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Solution

The fourth proportional to 908,219.50, 1,253,342.94 and 505,811.50 is: 698,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,219.50 : 1,253,342.94 = 505,811.50 : x
  2. Step 2: Convert to fraction form
    908,219.50/1,253,342.94 = 505,811.50/x
  3. Step 3: Cross multiply
    908,219.50x = 1,253,342.94 × 505,811.50
  4. Step 4: Simplify right side
    908,219.50x = 633,955,272,495.81
  5. Step 5: Solve for x
    x = 633,955,272,495.81/908,219.50
  6. Step 6: Final answer
    x = 698,019.89

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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.