Home / 980,621.71-1,350,129.67-836,804.59

Finding the Fourth Proportional to 980,621.71, 1,350,129.67 and 836,804.59

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Solution

The fourth proportional to 980,621.71, 1,350,129.67 and 836,804.59 is: 1,152,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,621.71 : 1,350,129.67 = 836,804.59 : x
  2. Step 2: Convert to fraction form
    980,621.71/1,350,129.67 = 836,804.59/x
  3. Step 3: Cross multiply
    980,621.71x = 1,350,129.67 × 836,804.59
  4. Step 4: Simplify right side
    980,621.71x = 1,129,794,704,951.19
  5. Step 5: Solve for x
    x = 1,129,794,704,951.19/980,621.71
  6. Step 6: Final answer
    x = 1,152,120.84

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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.