Home / 990,533.80-1,485,800.70-981,202.60

Finding the Fourth Proportional to 990,533.80, 1,485,800.70 and 981,202.60

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Solution

The fourth proportional to 990,533.80, 1,485,800.70 and 981,202.60 is: 1,471,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,533.80 : 1,485,800.70 = 981,202.60 : x
  2. Step 2: Convert to fraction form
    990,533.80/1,485,800.70 = 981,202.60/x
  3. Step 3: Cross multiply
    990,533.80x = 1,485,800.70 × 981,202.60
  4. Step 4: Simplify right side
    990,533.80x = 1,457,871,509,921.82
  5. Step 5: Solve for x
    x = 1,457,871,509,921.82/990,533.80
  6. Step 6: Final answer
    x = 1,471,803.90

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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.