Home / 818,244.56-1,129,146-455,683.70

Finding the Fourth Proportional to 818,244.56, 1,129,146 and 455,683.70

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Solution

The fourth proportional to 818,244.56, 1,129,146 and 455,683.70 is: 628,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,244.56 : 1,129,146 = 455,683.70 : x
  2. Step 2: Convert to fraction form
    818,244.56/1,129,146 = 455,683.70/x
  3. Step 3: Cross multiply
    818,244.56x = 1,129,146 × 455,683.70
  4. Step 4: Simplify right side
    818,244.56x = 514,533,427,120.20
  5. Step 5: Solve for x
    x = 514,533,427,120.20/818,244.56
  6. Step 6: Final answer
    x = 628,825.97

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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.