Home / 1,212,632.63-1,673,145.32-689,302.17

Finding the Fourth Proportional to 1,212,632.63, 1,673,145.32 and 689,302.17

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Solution

The fourth proportional to 1,212,632.63, 1,673,145.32 and 689,302.17 is: 951,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,632.63 : 1,673,145.32 = 689,302.17 : x
  2. Step 2: Convert to fraction form
    1,212,632.63/1,673,145.32 = 689,302.17/x
  3. Step 3: Cross multiply
    1,212,632.63x = 1,673,145.32 × 689,302.17
  4. Step 4: Simplify right side
    1,212,632.63x = 1,153,302,699,801.34
  5. Step 5: Solve for x
    x = 1,153,302,699,801.34/1,212,632.63
  6. Step 6: Final answer
    x = 951,073.45

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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.