Home / 828,602.70-1,143,339.90-465,956.46

Finding the Fourth Proportional to 828,602.70, 1,143,339.90 and 465,956.46

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Solution

The fourth proportional to 828,602.70, 1,143,339.90 and 465,956.46 is: 642,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,602.70 : 1,143,339.90 = 465,956.46 : x
  2. Step 2: Convert to fraction form
    828,602.70/1,143,339.90 = 465,956.46/x
  3. Step 3: Cross multiply
    828,602.70x = 1,143,339.90 × 465,956.46
  4. Step 4: Simplify right side
    828,602.70x = 532,746,612,380.75
  5. Step 5: Solve for x
    x = 532,746,612,380.75/828,602.70
  6. Step 6: Final answer
    x = 642,945.78

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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.