Home / 1,279,260-1,765,534.32-742,716

Finding the Fourth Proportional to 1,279,260, 1,765,534.32 and 742,716

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Solution

The fourth proportional to 1,279,260, 1,765,534.32 and 742,716 is: 1,025,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,260 : 1,765,534.32 = 742,716 : x
  2. Step 2: Convert to fraction form
    1,279,260/1,765,534.32 = 742,716/x
  3. Step 3: Cross multiply
    1,279,260x = 1,765,534.32 × 742,716
  4. Step 4: Simplify right side
    1,279,260x = 1,311,290,588,013.12
  5. Step 5: Solve for x
    x = 1,311,290,588,013.12/1,279,260
  6. Step 6: Final answer
    x = 1,025,038.37

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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.