Home / 726,774.56-1,090,289.28-300,308.48

Finding the Fourth Proportional to 726,774.56, 1,090,289.28 and 300,308.48

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Solution

The fourth proportional to 726,774.56, 1,090,289.28 and 300,308.48 is: 450,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,774.56 : 1,090,289.28 = 300,308.48 : x
  2. Step 2: Convert to fraction form
    726,774.56/1,090,289.28 = 300,308.48/x
  3. Step 3: Cross multiply
    726,774.56x = 1,090,289.28 × 300,308.48
  4. Step 4: Simplify right side
    726,774.56x = 327,423,116,437.09
  5. Step 5: Solve for x
    x = 327,423,116,437.09/726,774.56
  6. Step 6: Final answer
    x = 450,515.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.