Home / 1,320,283.95-1,977,015.16-911,215.51

Finding the Fourth Proportional to 1,320,283.95, 1,977,015.16 and 911,215.51

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Solution

The fourth proportional to 1,320,283.95, 1,977,015.16 and 911,215.51 is: 1,364,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,283.95 : 1,977,015.16 = 911,215.51 : x
  2. Step 2: Convert to fraction form
    1,320,283.95/1,977,015.16 = 911,215.51/x
  3. Step 3: Cross multiply
    1,320,283.95x = 1,977,015.16 × 911,215.51
  4. Step 4: Simplify right side
    1,320,283.95x = 1,801,486,877,297.13
  5. Step 5: Solve for x
    x = 1,801,486,877,297.13/1,320,283.95
  6. Step 6: Final answer
    x = 1,364,469.27

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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.