Home / 1,210,313.25-1,815,709.45-345,755.63

Finding the Fourth Proportional to 1,210,313.25, 1,815,709.45 and 345,755.63

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Solution

The fourth proportional to 1,210,313.25, 1,815,709.45 and 345,755.63 is: 518,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,313.25 : 1,815,709.45 = 345,755.63 : x
  2. Step 2: Convert to fraction form
    1,210,313.25/1,815,709.45 = 345,755.63/x
  3. Step 3: Cross multiply
    1,210,313.25x = 1,815,709.45 × 345,755.63
  4. Step 4: Simplify right side
    1,210,313.25x = 627,791,769,104.88
  5. Step 5: Solve for x
    x = 627,791,769,104.88/1,210,313.25
  6. Step 6: Final answer
    x = 518,701.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.