Home / 1,308,540.31-1,805,518.70-764,570.90

Finding the Fourth Proportional to 1,308,540.31, 1,805,518.70 and 764,570.90

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Solution

The fourth proportional to 1,308,540.31, 1,805,518.70 and 764,570.90 is: 1,054,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,540.31 : 1,805,518.70 = 764,570.90 : x
  2. Step 2: Convert to fraction form
    1,308,540.31/1,805,518.70 = 764,570.90/x
  3. Step 3: Cross multiply
    1,308,540.31x = 1,805,518.70 × 764,570.90
  4. Step 4: Simplify right side
    1,308,540.31x = 1,380,447,047,442.52
  5. Step 5: Solve for x
    x = 1,380,447,047,442.52/1,308,540.31
  6. Step 6: Final answer
    x = 1,054,951.87

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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.