Home / 555,220.24-766,206.38-300,571.40

Finding the Fourth Proportional to 555,220.24, 766,206.38 and 300,571.40

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Solution

The fourth proportional to 555,220.24, 766,206.38 and 300,571.40 is: 414,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,220.24 : 766,206.38 = 300,571.40 : x
  2. Step 2: Convert to fraction form
    555,220.24/766,206.38 = 300,571.40/x
  3. Step 3: Cross multiply
    555,220.24x = 766,206.38 × 300,571.40
  4. Step 4: Simplify right side
    555,220.24x = 230,299,724,325.53
  5. Step 5: Solve for x
    x = 230,299,724,325.53/555,220.24
  6. Step 6: Final answer
    x = 414,789.86

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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.