Home / 1,262,369.96-1,742,076.96-689,410.16

Finding the Fourth Proportional to 1,262,369.96, 1,742,076.96 and 689,410.16

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Solution

The fourth proportional to 1,262,369.96, 1,742,076.96 and 689,410.16 is: 951,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,369.96 : 1,742,076.96 = 689,410.16 : x
  2. Step 2: Convert to fraction form
    1,262,369.96/1,742,076.96 = 689,410.16/x
  3. Step 3: Cross multiply
    1,262,369.96x = 1,742,076.96 × 689,410.16
  4. Step 4: Simplify right side
    1,262,369.96x = 1,201,005,555,725.91
  5. Step 5: Solve for x
    x = 1,201,005,555,725.91/1,262,369.96
  6. Step 6: Final answer
    x = 951,389.52

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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.