Home / 901,699.20-1,245,641.04-720,172.80

Finding the Fourth Proportional to 901,699.20, 1,245,641.04 and 720,172.80

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Solution

The fourth proportional to 901,699.20, 1,245,641.04 and 720,172.80 is: 994,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,699.20 : 1,245,641.04 = 720,172.80 : x
  2. Step 2: Convert to fraction form
    901,699.20/1,245,641.04 = 720,172.80/x
  3. Step 3: Cross multiply
    901,699.20x = 1,245,641.04 × 720,172.80
  4. Step 4: Simplify right side
    901,699.20x = 897,076,795,571.71
  5. Step 5: Solve for x
    x = 897,076,795,571.71/901,699.20
  6. Step 6: Final answer
    x = 994,873.67

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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.