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Finding the Fourth Proportional to 517,758.24, 776,939.22 and 218,220.24

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Solution

The fourth proportional to 517,758.24, 776,939.22 and 218,220.24 is: 327,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,758.24 : 776,939.22 = 218,220.24 : x
  2. Step 2: Convert to fraction form
    517,758.24/776,939.22 = 218,220.24/x
  3. Step 3: Cross multiply
    517,758.24x = 776,939.22 × 218,220.24
  4. Step 4: Simplify right side
    517,758.24x = 169,543,863,053.81
  5. Step 5: Solve for x
    x = 169,543,863,053.81/517,758.24
  6. Step 6: Final answer
    x = 327,457.59

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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.