Home / 870,982.34-1,201,924.64-489,025.22

Finding the Fourth Proportional to 870,982.34, 1,201,924.64 and 489,025.22

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Solution

The fourth proportional to 870,982.34, 1,201,924.64 and 489,025.22 is: 674,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,982.34 : 1,201,924.64 = 489,025.22 : x
  2. Step 2: Convert to fraction form
    870,982.34/1,201,924.64 = 489,025.22/x
  3. Step 3: Cross multiply
    870,982.34x = 1,201,924.64 × 489,025.22
  4. Step 4: Simplify right side
    870,982.34x = 587,771,456,712.36
  5. Step 5: Solve for x
    x = 587,771,456,712.36/870,982.34
  6. Step 6: Final answer
    x = 674,837.40

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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.