Home / 862,179.02-1,189,806.24-499,812.68

Finding the Fourth Proportional to 862,179.02, 1,189,806.24 and 499,812.68

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Solution

The fourth proportional to 862,179.02, 1,189,806.24 and 499,812.68 is: 689,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,179.02 : 1,189,806.24 = 499,812.68 : x
  2. Step 2: Convert to fraction form
    862,179.02/1,189,806.24 = 499,812.68/x
  3. Step 3: Cross multiply
    862,179.02x = 1,189,806.24 × 499,812.68
  4. Step 4: Simplify right side
    862,179.02x = 594,680,245,495.12
  5. Step 5: Solve for x
    x = 594,680,245,495.12/862,179.02
  6. Step 6: Final answer
    x = 689,741.03

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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.