Home / 1,356,562.20-1,872,249.48-812,720.64

Finding the Fourth Proportional to 1,356,562.20, 1,872,249.48 and 812,720.64

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Solution

The fourth proportional to 1,356,562.20, 1,872,249.48 and 812,720.64 is: 1,121,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,562.20 : 1,872,249.48 = 812,720.64 : x
  2. Step 2: Convert to fraction form
    1,356,562.20/1,872,249.48 = 812,720.64/x
  3. Step 3: Cross multiply
    1,356,562.20x = 1,872,249.48 × 812,720.64
  4. Step 4: Simplify right side
    1,356,562.20x = 1,521,615,795,625.27
  5. Step 5: Solve for x
    x = 1,521,615,795,625.27/1,356,562.20
  6. Step 6: Final answer
    x = 1,121,670.50

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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.