Home / 1,226,399.70-1,839,607.76-427,678.14

Finding the Fourth Proportional to 1,226,399.70, 1,839,607.76 and 427,678.14

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Solution

The fourth proportional to 1,226,399.70, 1,839,607.76 and 427,678.14 is: 641,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,399.70 : 1,839,607.76 = 427,678.14 : x
  2. Step 2: Convert to fraction form
    1,226,399.70/1,839,607.76 = 427,678.14/x
  3. Step 3: Cross multiply
    1,226,399.70x = 1,839,607.76 × 427,678.14
  4. Step 4: Simplify right side
    1,226,399.70x = 786,760,030,688.40
  5. Step 5: Solve for x
    x = 786,760,030,688.40/1,226,399.70
  6. Step 6: Final answer
    x = 641,520.08

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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.