Home / 1,505,892.35-2,078,131.43-817,564.19

Finding the Fourth Proportional to 1,505,892.35, 2,078,131.43 and 817,564.19

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Solution

The fourth proportional to 1,505,892.35, 2,078,131.43 and 817,564.19 is: 1,128,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,892.35 : 2,078,131.43 = 817,564.19 : x
  2. Step 2: Convert to fraction form
    1,505,892.35/2,078,131.43 = 817,564.19/x
  3. Step 3: Cross multiply
    1,505,892.35x = 2,078,131.43 × 817,564.19
  4. Step 4: Simplify right side
    1,505,892.35x = 1,699,005,830,934.75
  5. Step 5: Solve for x
    x = 1,699,005,830,934.75/1,505,892.35
  6. Step 6: Final answer
    x = 1,128,238.57

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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.