Home / 1,021,921.86-1,410,184.65-613,781.17

Finding the Fourth Proportional to 1,021,921.86, 1,410,184.65 and 613,781.17

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Solution

The fourth proportional to 1,021,921.86, 1,410,184.65 and 613,781.17 is: 846,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,921.86 : 1,410,184.65 = 613,781.17 : x
  2. Step 2: Convert to fraction form
    1,021,921.86/1,410,184.65 = 613,781.17/x
  3. Step 3: Cross multiply
    1,021,921.86x = 1,410,184.65 × 613,781.17
  4. Step 4: Simplify right side
    1,021,921.86x = 865,544,784,393.04
  5. Step 5: Solve for x
    x = 865,544,784,393.04/1,021,921.86
  6. Step 6: Final answer
    x = 846,977.47

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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.