Home / 1,384,445.36-1,910,173.52-811,177.52

Finding the Fourth Proportional to 1,384,445.36, 1,910,173.52 and 811,177.52

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Solution

The fourth proportional to 1,384,445.36, 1,910,173.52 and 811,177.52 is: 1,119,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,445.36 : 1,910,173.52 = 811,177.52 : x
  2. Step 2: Convert to fraction form
    1,384,445.36/1,910,173.52 = 811,177.52/x
  3. Step 3: Cross multiply
    1,384,445.36x = 1,910,173.52 × 811,177.52
  4. Step 4: Simplify right side
    1,384,445.36x = 1,549,489,818,723.27
  5. Step 5: Solve for x
    x = 1,549,489,818,723.27/1,384,445.36
  6. Step 6: Final answer
    x = 1,119,213.41

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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.