Home / 870,431.43-1,201,219.02-488,481.60

Finding the Fourth Proportional to 870,431.43, 1,201,219.02 and 488,481.60

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Solution

The fourth proportional to 870,431.43, 1,201,219.02 and 488,481.60 is: 674,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,431.43 : 1,201,219.02 = 488,481.60 : x
  2. Step 2: Convert to fraction form
    870,431.43/1,201,219.02 = 488,481.60/x
  3. Step 3: Cross multiply
    870,431.43x = 1,201,219.02 × 488,481.60
  4. Step 4: Simplify right side
    870,431.43x = 586,773,388,840.03
  5. Step 5: Solve for x
    x = 586,773,388,840.03/870,431.43
  6. Step 6: Final answer
    x = 674,117.88

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Double scale
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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.