Home / 1,887,521.86-2,605,349.37-1,284,259.78

Finding the Fourth Proportional to 1,887,521.86, 2,605,349.37 and 1,284,259.78

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Solution

The fourth proportional to 1,887,521.86, 2,605,349.37 and 1,284,259.78 is: 1,772,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,521.86 : 2,605,349.37 = 1,284,259.78 : x
  2. Step 2: Convert to fraction form
    1,887,521.86/2,605,349.37 = 1,284,259.78/x
  3. Step 3: Cross multiply
    1,887,521.86x = 2,605,349.37 × 1,284,259.78
  4. Step 4: Simplify right side
    1,887,521.86x = 3,345,945,408,739.34
  5. Step 5: Solve for x
    x = 3,345,945,408,739.34/1,887,521.86
  6. Step 6: Final answer
    x = 1,772,665.78

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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.