Home / 1,025,982.08-1,415,120.96-720,126.72

Finding the Fourth Proportional to 1,025,982.08, 1,415,120.96 and 720,126.72

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Solution

The fourth proportional to 1,025,982.08, 1,415,120.96 and 720,126.72 is: 993,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,982.08 : 1,415,120.96 = 720,126.72 : x
  2. Step 2: Convert to fraction form
    1,025,982.08/1,415,120.96 = 720,126.72/x
  3. Step 3: Cross multiply
    1,025,982.08x = 1,415,120.96 × 720,126.72
  4. Step 4: Simplify right side
    1,025,982.08x = 1,019,066,415,328.05
  5. Step 5: Solve for x
    x = 1,019,066,415,328.05/1,025,982.08
  6. Step 6: Final answer
    x = 993,259.47

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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.