Home / 1,379,342.46-1,903,207.32-806,271.78

Finding the Fourth Proportional to 1,379,342.46, 1,903,207.32 and 806,271.78

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Solution

The fourth proportional to 1,379,342.46, 1,903,207.32 and 806,271.78 is: 1,112,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,342.46 : 1,903,207.32 = 806,271.78 : x
  2. Step 2: Convert to fraction form
    1,379,342.46/1,903,207.32 = 806,271.78/x
  3. Step 3: Cross multiply
    1,379,342.46x = 1,903,207.32 × 806,271.78
  4. Step 4: Simplify right side
    1,379,342.46x = 1,534,502,353,605.43
  5. Step 5: Solve for x
    x = 1,534,502,353,605.43/1,379,342.46
  6. Step 6: Final answer
    x = 1,112,488.30

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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.