Home / 870,992.22-1,201,938.26-489,035.10

Finding the Fourth Proportional to 870,992.22, 1,201,938.26 and 489,035.10

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Solution

The fourth proportional to 870,992.22, 1,201,938.26 and 489,035.10 is: 674,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,992.22 : 1,201,938.26 = 489,035.10 : x
  2. Step 2: Convert to fraction form
    870,992.22/1,201,938.26 = 489,035.10/x
  3. Step 3: Cross multiply
    870,992.22x = 1,201,938.26 × 489,035.10
  4. Step 4: Simplify right side
    870,992.22x = 587,789,997,172.93
  5. Step 5: Solve for x
    x = 587,789,997,172.93/870,992.22
  6. Step 6: Final answer
    x = 674,851.03

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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.