Home / 1,428,012.41-1,970,656.98-807,804.32

Finding the Fourth Proportional to 1,428,012.41, 1,970,656.98 and 807,804.32

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Solution

The fourth proportional to 1,428,012.41, 1,970,656.98 and 807,804.32 is: 1,114,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,012.41 : 1,970,656.98 = 807,804.32 : x
  2. Step 2: Convert to fraction form
    1,428,012.41/1,970,656.98 = 807,804.32/x
  3. Step 3: Cross multiply
    1,428,012.41x = 1,970,656.98 × 807,804.32
  4. Step 4: Simplify right side
    1,428,012.41x = 1,591,905,225,427.02
  5. Step 5: Solve for x
    x = 1,591,905,225,427.02/1,428,012.41
  6. Step 6: Final answer
    x = 1,114,769.88

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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.