Home / 1,009,053.38-1,398,504.56-990,157.70

Finding the Fourth Proportional to 1,009,053.38, 1,398,504.56 and 990,157.70

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Solution

The fourth proportional to 1,009,053.38, 1,398,504.56 and 990,157.70 is: 1,372,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,053.38 : 1,398,504.56 = 990,157.70 : x
  2. Step 2: Convert to fraction form
    1,009,053.38/1,398,504.56 = 990,157.70/x
  3. Step 3: Cross multiply
    1,009,053.38x = 1,398,504.56 × 990,157.70
  4. Step 4: Simplify right side
    1,009,053.38x = 1,384,740,057,114.59
  5. Step 5: Solve for x
    x = 1,384,740,057,114.59/1,009,053.38
  6. Step 6: Final answer
    x = 1,372,315.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.