Home / 870,986.12-1,201,951.86-489,004.04

Finding the Fourth Proportional to 870,986.12, 1,201,951.86 and 489,004.04

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Solution

The fourth proportional to 870,986.12, 1,201,951.86 and 489,004.04 is: 674,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,986.12 : 1,201,951.86 = 489,004.04 : x
  2. Step 2: Convert to fraction form
    870,986.12/1,201,951.86 = 489,004.04/x
  3. Step 3: Cross multiply
    870,986.12x = 1,201,951.86 × 489,004.04
  4. Step 4: Simplify right side
    870,986.12x = 587,759,315,425.51
  5. Step 5: Solve for x
    x = 587,759,315,425.51/870,986.12
  6. Step 6: Final answer
    x = 674,820.53

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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.