Home / 828,686.23-1,143,598.82-489,154.48

Finding the Fourth Proportional to 828,686.23, 1,143,598.82 and 489,154.48

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Solution

The fourth proportional to 828,686.23, 1,143,598.82 and 489,154.48 is: 675,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,686.23 : 1,143,598.82 = 489,154.48 : x
  2. Step 2: Convert to fraction form
    828,686.23/1,143,598.82 = 489,154.48/x
  3. Step 3: Cross multiply
    828,686.23x = 1,143,598.82 × 489,154.48
  4. Step 4: Simplify right side
    828,686.23x = 559,396,480,820.94
  5. Step 5: Solve for x
    x = 559,396,480,820.94/828,686.23
  6. Step 6: Final answer
    x = 675,040.16

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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.