Home / 870,890.08-1,201,817.76-488,907.04

Finding the Fourth Proportional to 870,890.08, 1,201,817.76 and 488,907.04

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Solution

The fourth proportional to 870,890.08, 1,201,817.76 and 488,907.04 is: 674,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,890.08 : 1,201,817.76 = 488,907.04 : x
  2. Step 2: Convert to fraction form
    870,890.08/1,201,817.76 = 488,907.04/x
  3. Step 3: Cross multiply
    870,890.08x = 1,201,817.76 × 488,907.04
  4. Step 4: Simplify right side
    870,890.08x = 587,577,163,661.03
  5. Step 5: Solve for x
    x = 587,577,163,661.03/870,890.08
  6. Step 6: Final answer
    x = 674,685.79

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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.