Home / 1,377,967.19-2,066,817.12-418,431.11

Finding the Fourth Proportional to 1,377,967.19, 2,066,817.12 and 418,431.11

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Solution

The fourth proportional to 1,377,967.19, 2,066,817.12 and 418,431.11 is: 627,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,967.19 : 2,066,817.12 = 418,431.11 : x
  2. Step 2: Convert to fraction form
    1,377,967.19/2,066,817.12 = 418,431.11/x
  3. Step 3: Cross multiply
    1,377,967.19x = 2,066,817.12 × 418,431.11
  4. Step 4: Simplify right side
    1,377,967.19x = 864,820,571,354.52
  5. Step 5: Solve for x
    x = 864,820,571,354.52/1,377,967.19
  6. Step 6: Final answer
    x = 627,606.07

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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.