Home / 1,018,719.29-1,405,840.96-636,967.37

Finding the Fourth Proportional to 1,018,719.29, 1,405,840.96 and 636,967.37

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Solution

The fourth proportional to 1,018,719.29, 1,405,840.96 and 636,967.37 is: 879,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,719.29 : 1,405,840.96 = 636,967.37 : x
  2. Step 2: Convert to fraction form
    1,018,719.29/1,405,840.96 = 636,967.37/x
  3. Step 3: Cross multiply
    1,018,719.29x = 1,405,840.96 × 636,967.37
  4. Step 4: Simplify right side
    1,018,719.29x = 895,474,823,240.29
  5. Step 5: Solve for x
    x = 895,474,823,240.29/1,018,719.29
  6. Step 6: Final answer
    x = 879,020.19

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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.