Home / 1,329,464.70-1,994,699.57-520,427.28

Finding the Fourth Proportional to 1,329,464.70, 1,994,699.57 and 520,427.28

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Solution

The fourth proportional to 1,329,464.70, 1,994,699.57 and 520,427.28 is: 780,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,464.70 : 1,994,699.57 = 520,427.28 : x
  2. Step 2: Convert to fraction form
    1,329,464.70/1,994,699.57 = 520,427.28/x
  3. Step 3: Cross multiply
    1,329,464.70x = 1,994,699.57 × 520,427.28
  4. Step 4: Simplify right side
    1,329,464.70x = 1,038,096,071,632.27
  5. Step 5: Solve for x
    x = 1,038,096,071,632.27/1,329,464.70
  6. Step 6: Final answer
    x = 780,837.63

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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.