Home / 842,938.28-1,263,075.78-684,392.12

Finding the Fourth Proportional to 842,938.28, 1,263,075.78 and 684,392.12

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Solution

The fourth proportional to 842,938.28, 1,263,075.78 and 684,392.12 is: 1,025,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,938.28 : 1,263,075.78 = 684,392.12 : x
  2. Step 2: Convert to fraction form
    842,938.28/1,263,075.78 = 684,392.12/x
  3. Step 3: Cross multiply
    842,938.28x = 1,263,075.78 × 684,392.12
  4. Step 4: Simplify right side
    842,938.28x = 864,439,110,794.85
  5. Step 5: Solve for x
    x = 864,439,110,794.85/842,938.28
  6. Step 6: Final answer
    x = 1,025,507.00

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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.