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Finding the Fourth Proportional to 812,473.56, 1,121,205.72 and 468,183

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Solution

The fourth proportional to 812,473.56, 1,121,205.72 and 468,183 is: 646,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,473.56 : 1,121,205.72 = 468,183 : x
  2. Step 2: Convert to fraction form
    812,473.56/1,121,205.72 = 468,183/x
  3. Step 3: Cross multiply
    812,473.56x = 1,121,205.72 × 468,183
  4. Step 4: Simplify right side
    812,473.56x = 524,929,457,606.76
  5. Step 5: Solve for x
    x = 524,929,457,606.76/812,473.56
  6. Step 6: Final answer
    x = 646,088.05

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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.