Home / 1,112,114.75-1,530,581.28-916,961.45

Finding the Fourth Proportional to 1,112,114.75, 1,530,581.28 and 916,961.45

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Solution

The fourth proportional to 1,112,114.75, 1,530,581.28 and 916,961.45 is: 1,261,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,114.75 : 1,530,581.28 = 916,961.45 : x
  2. Step 2: Convert to fraction form
    1,112,114.75/1,530,581.28 = 916,961.45/x
  3. Step 3: Cross multiply
    1,112,114.75x = 1,530,581.28 × 916,961.45
  4. Step 4: Simplify right side
    1,112,114.75x = 1,403,484,029,851.66
  5. Step 5: Solve for x
    x = 1,403,484,029,851.66/1,112,114.75
  6. Step 6: Final answer
    x = 1,261,995.70

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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.