Home / 905,169.72-1,357,929.65-306,228.45

Finding the Fourth Proportional to 905,169.72, 1,357,929.65 and 306,228.45

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Solution

The fourth proportional to 905,169.72, 1,357,929.65 and 306,228.45 is: 459,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,169.72 : 1,357,929.65 = 306,228.45 : x
  2. Step 2: Convert to fraction form
    905,169.72/1,357,929.65 = 306,228.45/x
  3. Step 3: Cross multiply
    905,169.72x = 1,357,929.65 × 306,228.45
  4. Step 4: Simplify right side
    905,169.72x = 415,836,691,928.54
  5. Step 5: Solve for x
    x = 415,836,691,928.54/905,169.72
  6. Step 6: Final answer
    x = 459,401.90

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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.