Home / 1,209,900.56-1,669,700.48-658,653.12

Finding the Fourth Proportional to 1,209,900.56, 1,669,700.48 and 658,653.12

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Solution

The fourth proportional to 1,209,900.56, 1,669,700.48 and 658,653.12 is: 908,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,900.56 : 1,669,700.48 = 658,653.12 : x
  2. Step 2: Convert to fraction form
    1,209,900.56/1,669,700.48 = 658,653.12/x
  3. Step 3: Cross multiply
    1,209,900.56x = 1,669,700.48 × 658,653.12
  4. Step 4: Simplify right side
    1,209,900.56x = 1,099,753,430,617.50
  5. Step 5: Solve for x
    x = 1,099,753,430,617.50/1,209,900.56
  6. Step 6: Final answer
    x = 908,961.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.