Home / 1,422,991.83-1,963,775.27-811,133.48

Finding the Fourth Proportional to 1,422,991.83, 1,963,775.27 and 811,133.48

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Solution

The fourth proportional to 1,422,991.83, 1,963,775.27 and 811,133.48 is: 1,119,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,991.83 : 1,963,775.27 = 811,133.48 : x
  2. Step 2: Convert to fraction form
    1,422,991.83/1,963,775.27 = 811,133.48/x
  3. Step 3: Cross multiply
    1,422,991.83x = 1,963,775.27 × 811,133.48
  4. Step 4: Simplify right side
    1,422,991.83x = 1,592,883,854,818.50
  5. Step 5: Solve for x
    x = 1,592,883,854,818.50/1,422,991.83
  6. Step 6: Final answer
    x = 1,119,390.72

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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.