Home / 1,219,548.85-1,820,622.87-1,138,503.89

Finding the Fourth Proportional to 1,219,548.85, 1,820,622.87 and 1,138,503.89

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Solution

The fourth proportional to 1,219,548.85, 1,820,622.87 and 1,138,503.89 is: 1,699,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,548.85 : 1,820,622.87 = 1,138,503.89 : x
  2. Step 2: Convert to fraction form
    1,219,548.85/1,820,622.87 = 1,138,503.89/x
  3. Step 3: Cross multiply
    1,219,548.85x = 1,820,622.87 × 1,138,503.89
  4. Step 4: Simplify right side
    1,219,548.85x = 2,072,786,224,269.52
  5. Step 5: Solve for x
    x = 2,072,786,224,269.52/1,219,548.85
  6. Step 6: Final answer
    x = 1,699,633.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.