Home / 828,876.72-1,143,431.17-484,487.67

Finding the Fourth Proportional to 828,876.72, 1,143,431.17 and 484,487.67

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Solution

The fourth proportional to 828,876.72, 1,143,431.17 and 484,487.67 is: 668,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,876.72 : 1,143,431.17 = 484,487.67 : x
  2. Step 2: Convert to fraction form
    828,876.72/1,143,431.17 = 484,487.67/x
  3. Step 3: Cross multiply
    828,876.72x = 1,143,431.17 × 484,487.67
  4. Step 4: Simplify right side
    828,876.72x = 553,978,303,358.67
  5. Step 5: Solve for x
    x = 553,978,303,358.67/828,876.72
  6. Step 6: Final answer
    x = 668,348.25

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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.