Home / 685,479.03-945,960.30-383,673.03

Finding the Fourth Proportional to 685,479.03, 945,960.30 and 383,673.03

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Solution

The fourth proportional to 685,479.03, 945,960.30 and 383,673.03 is: 529,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,479.03 : 945,960.30 = 383,673.03 : x
  2. Step 2: Convert to fraction form
    685,479.03/945,960.30 = 383,673.03/x
  3. Step 3: Cross multiply
    685,479.03x = 945,960.30 × 383,673.03
  4. Step 4: Simplify right side
    685,479.03x = 362,939,454,560.71
  5. Step 5: Solve for x
    x = 362,939,454,560.71/685,479.03
  6. Step 6: Final answer
    x = 529,468.36

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1.5x scale

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.