Home / 828,481-1,143,292.89-465,904.76

Finding the Fourth Proportional to 828,481, 1,143,292.89 and 465,904.76

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Solution

The fourth proportional to 828,481, 1,143,292.89 and 465,904.76 is: 642,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,481 : 1,143,292.89 = 465,904.76 : x
  2. Step 2: Convert to fraction form
    828,481/1,143,292.89 = 465,904.76/x
  3. Step 3: Cross multiply
    828,481x = 1,143,292.89 × 465,904.76
  4. Step 4: Simplify right side
    828,481x = 532,665,599,525.16
  5. Step 5: Solve for x
    x = 532,665,599,525.16/828,481
  6. Step 6: Final answer
    x = 642,942.44

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1.5x scale

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.