Home / 828,749.88-1,143,686.52-489,218.04

Finding the Fourth Proportional to 828,749.88, 1,143,686.52 and 489,218.04

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Solution

The fourth proportional to 828,749.88, 1,143,686.52 and 489,218.04 is: 675,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,749.88 : 1,143,686.52 = 489,218.04 : x
  2. Step 2: Convert to fraction form
    828,749.88/1,143,686.52 = 489,218.04/x
  3. Step 3: Cross multiply
    828,749.88x = 1,143,686.52 × 489,218.04
  4. Step 4: Simplify right side
    828,749.88x = 559,512,077,688.82
  5. Step 5: Solve for x
    x = 559,512,077,688.82/828,749.88
  6. Step 6: Final answer
    x = 675,127.79

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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.