Home / 1,292,590.86-1,939,771.89-451,142.61

Finding the Fourth Proportional to 1,292,590.86, 1,939,771.89 and 451,142.61

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Solution

The fourth proportional to 1,292,590.86, 1,939,771.89 and 451,142.61 is: 677,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,590.86 : 1,939,771.89 = 451,142.61 : x
  2. Step 2: Convert to fraction form
    1,292,590.86/1,939,771.89 = 451,142.61/x
  3. Step 3: Cross multiply
    1,292,590.86x = 1,939,771.89 × 451,142.61
  4. Step 4: Simplify right side
    1,292,590.86x = 875,113,753,259.23
  5. Step 5: Solve for x
    x = 875,113,753,259.23/1,292,590.86
  6. Step 6: Final answer
    x = 677,023.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.