Home / 939,694.40-1,409,541.60-308,628.80

Finding the Fourth Proportional to 939,694.40, 1,409,541.60 and 308,628.80

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Solution

The fourth proportional to 939,694.40, 1,409,541.60 and 308,628.80 is: 462,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,694.40 : 1,409,541.60 = 308,628.80 : x
  2. Step 2: Convert to fraction form
    939,694.40/1,409,541.60 = 308,628.80/x
  3. Step 3: Cross multiply
    939,694.40x = 1,409,541.60 × 308,628.80
  4. Step 4: Simplify right side
    939,694.40x = 435,025,132,558.08
  5. Step 5: Solve for x
    x = 435,025,132,558.08/939,694.40
  6. Step 6: Final answer
    x = 462,943.20

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1.5x scale

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.