Home / 1,208,174.86-1,667,287.53-664,345.72

Finding the Fourth Proportional to 1,208,174.86, 1,667,287.53 and 664,345.72

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Solution

The fourth proportional to 1,208,174.86, 1,667,287.53 and 664,345.72 is: 916,800.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,174.86 : 1,667,287.53 = 664,345.72 : x
  2. Step 2: Convert to fraction form
    1,208,174.86/1,667,287.53 = 664,345.72/x
  3. Step 3: Cross multiply
    1,208,174.86x = 1,667,287.53 × 664,345.72
  4. Step 4: Simplify right side
    1,208,174.86x = 1,107,655,334,564.87
  5. Step 5: Solve for x
    x = 1,107,655,334,564.87/1,208,174.86
  6. Step 6: Final answer
    x = 916,800.52

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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.