Home / 1,422,278.48-1,963,238.52-818,906.96

Finding the Fourth Proportional to 1,422,278.48, 1,963,238.52 and 818,906.96

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Solution

The fourth proportional to 1,422,278.48, 1,963,238.52 and 818,906.96 is: 1,130,376.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,278.48 : 1,963,238.52 = 818,906.96 : x
  2. Step 2: Convert to fraction form
    1,422,278.48/1,963,238.52 = 818,906.96/x
  3. Step 3: Cross multiply
    1,422,278.48x = 1,963,238.52 × 818,906.96
  4. Step 4: Simplify right side
    1,422,278.48x = 1,607,709,688,168.10
  5. Step 5: Solve for x
    x = 1,607,709,688,168.10/1,422,278.48
  6. Step 6: Final answer
    x = 1,130,376.16

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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.