Home / 1,308,289.90-1,805,380.77-764,475.34

Finding the Fourth Proportional to 1,308,289.90, 1,805,380.77 and 764,475.34

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Solution

The fourth proportional to 1,308,289.90, 1,805,380.77 and 764,475.34 is: 1,054,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,289.90 : 1,805,380.77 = 764,475.34 : x
  2. Step 2: Convert to fraction form
    1,308,289.90/1,805,380.77 = 764,475.34/x
  3. Step 3: Cross multiply
    1,308,289.90x = 1,805,380.77 × 764,475.34
  4. Step 4: Simplify right side
    1,308,289.90x = 1,380,169,077,975.21
  5. Step 5: Solve for x
    x = 1,380,169,077,975.21/1,308,289.90
  6. Step 6: Final answer
    x = 1,054,941.32

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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.