Home / 1,178,583.21-1,626,401.70-720,465.03

Finding the Fourth Proportional to 1,178,583.21, 1,626,401.70 and 720,465.03

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Solution

The fourth proportional to 1,178,583.21, 1,626,401.70 and 720,465.03 is: 994,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,583.21 : 1,626,401.70 = 720,465.03 : x
  2. Step 2: Convert to fraction form
    1,178,583.21/1,626,401.70 = 720,465.03/x
  3. Step 3: Cross multiply
    1,178,583.21x = 1,626,401.70 × 720,465.03
  4. Step 4: Simplify right side
    1,178,583.21x = 1,171,765,549,582.55
  5. Step 5: Solve for x
    x = 1,171,765,549,582.55/1,178,583.21
  6. Step 6: Final answer
    x = 994,215.38

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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.