Home / 1,020,453.63-1,529,344.49-420,716.67

Finding the Fourth Proportional to 1,020,453.63, 1,529,344.49 and 420,716.67

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Solution

The fourth proportional to 1,020,453.63, 1,529,344.49 and 420,716.67 is: 630,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,453.63 : 1,529,344.49 = 420,716.67 : x
  2. Step 2: Convert to fraction form
    1,020,453.63/1,529,344.49 = 420,716.67/x
  3. Step 3: Cross multiply
    1,020,453.63x = 1,529,344.49 × 420,716.67
  4. Step 4: Simplify right side
    1,020,453.63x = 643,420,719,012.07
  5. Step 5: Solve for x
    x = 643,420,719,012.07/1,020,453.63
  6. Step 6: Final answer
    x = 630,524.21

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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.