Home / 687,972.96-949,852.32-446,942.46

Finding the Fourth Proportional to 687,972.96, 949,852.32 and 446,942.46

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Solution

The fourth proportional to 687,972.96, 949,852.32 and 446,942.46 is: 617,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,972.96 : 949,852.32 = 446,942.46 : x
  2. Step 2: Convert to fraction form
    687,972.96/949,852.32 = 446,942.46/x
  3. Step 3: Cross multiply
    687,972.96x = 949,852.32 × 446,942.46
  4. Step 4: Simplify right side
    687,972.96x = 424,529,332,537.51
  5. Step 5: Solve for x
    x = 424,529,332,537.51/687,972.96
  6. Step 6: Final answer
    x = 617,072.70

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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.