Home / 1,140,112.40-1,573,059.84-681,039.08

Finding the Fourth Proportional to 1,140,112.40, 1,573,059.84 and 681,039.08

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Solution

The fourth proportional to 1,140,112.40, 1,573,059.84 and 681,039.08 is: 939,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,112.40 : 1,573,059.84 = 681,039.08 : x
  2. Step 2: Convert to fraction form
    1,140,112.40/1,573,059.84 = 681,039.08/x
  3. Step 3: Cross multiply
    1,140,112.40x = 1,573,059.84 × 681,039.08
  4. Step 4: Simplify right side
    1,140,112.40x = 1,071,315,226,218.55
  5. Step 5: Solve for x
    x = 1,071,315,226,218.55/1,140,112.40
  6. Step 6: Final answer
    x = 939,657.55

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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.