Home / 699,428.43-1,047,769.74-362,689.20

Finding the Fourth Proportional to 699,428.43, 1,047,769.74 and 362,689.20

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Solution

The fourth proportional to 699,428.43, 1,047,769.74 and 362,689.20 is: 543,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,428.43 : 1,047,769.74 = 362,689.20 : x
  2. Step 2: Convert to fraction form
    699,428.43/1,047,769.74 = 362,689.20/x
  3. Step 3: Cross multiply
    699,428.43x = 1,047,769.74 × 362,689.20
  4. Step 4: Simplify right side
    699,428.43x = 380,014,768,784.81
  5. Step 5: Solve for x
    x = 380,014,768,784.81/699,428.43
  6. Step 6: Final answer
    x = 543,321.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.