Home / 862,815.10-1,190,688.79-500,453.50

Finding the Fourth Proportional to 862,815.10, 1,190,688.79 and 500,453.50

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Solution

The fourth proportional to 862,815.10, 1,190,688.79 and 500,453.50 is: 690,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,815.10 : 1,190,688.79 = 500,453.50 : x
  2. Step 2: Convert to fraction form
    862,815.10/1,190,688.79 = 500,453.50/x
  3. Step 3: Cross multiply
    862,815.10x = 1,190,688.79 × 500,453.50
  4. Step 4: Simplify right side
    862,815.10x = 595,884,372,366.27
  5. Step 5: Solve for x
    x = 595,884,372,366.27/862,815.10
  6. Step 6: Final answer
    x = 690,628.12

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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.