Home / 828,493.76-1,143,310.50-465,917.51

Finding the Fourth Proportional to 828,493.76, 1,143,310.50 and 465,917.51

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Solution

The fourth proportional to 828,493.76, 1,143,310.50 and 465,917.51 is: 642,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,493.76 : 1,143,310.50 = 465,917.51 : x
  2. Step 2: Convert to fraction form
    828,493.76/1,143,310.50 = 465,917.51/x
  3. Step 3: Cross multiply
    828,493.76x = 1,143,310.50 × 465,917.51
  4. Step 4: Simplify right side
    828,493.76x = 532,688,381,316.86
  5. Step 5: Solve for x
    x = 532,688,381,316.86/828,493.76
  6. Step 6: Final answer
    x = 642,960.04

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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.