Home / 679,874.94-1,019,666.61-280,412.10

Finding the Fourth Proportional to 679,874.94, 1,019,666.61 and 280,412.10

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Solution

The fourth proportional to 679,874.94, 1,019,666.61 and 280,412.10 is: 420,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,874.94 : 1,019,666.61 = 280,412.10 : x
  2. Step 2: Convert to fraction form
    679,874.94/1,019,666.61 = 280,412.10/x
  3. Step 3: Cross multiply
    679,874.94x = 1,019,666.61 × 280,412.10
  4. Step 4: Simplify right side
    679,874.94x = 285,926,855,409.98
  5. Step 5: Solve for x
    x = 285,926,855,409.98/679,874.94
  6. Step 6: Final answer
    x = 420,558.02

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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.