Home / 809,856.69-1,117,818.39-465,730.21

Finding the Fourth Proportional to 809,856.69, 1,117,818.39 and 465,730.21

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Solution

The fourth proportional to 809,856.69, 1,117,818.39 and 465,730.21 is: 642,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,856.69 : 1,117,818.39 = 465,730.21 : x
  2. Step 2: Convert to fraction form
    809,856.69/1,117,818.39 = 465,730.21/x
  3. Step 3: Cross multiply
    809,856.69x = 1,117,818.39 × 465,730.21
  4. Step 4: Simplify right side
    809,856.69x = 520,601,793,516.56
  5. Step 5: Solve for x
    x = 520,601,793,516.56/809,856.69
  6. Step 6: Final answer
    x = 642,832.00

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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.