Home / 980,629.20-1,470,943.80-349,315.20

Finding the Fourth Proportional to 980,629.20, 1,470,943.80 and 349,315.20

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Solution

The fourth proportional to 980,629.20, 1,470,943.80 and 349,315.20 is: 523,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,629.20 : 1,470,943.80 = 349,315.20 : x
  2. Step 2: Convert to fraction form
    980,629.20/1,470,943.80 = 349,315.20/x
  3. Step 3: Cross multiply
    980,629.20x = 1,470,943.80 × 349,315.20
  4. Step 4: Simplify right side
    980,629.20x = 513,823,027,685.76
  5. Step 5: Solve for x
    x = 513,823,027,685.76/980,629.20
  6. Step 6: Final answer
    x = 523,972.80

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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.