Home / 903,440.78-1,248,212.70-768,896.54

Finding the Fourth Proportional to 903,440.78, 1,248,212.70 and 768,896.54

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Solution

The fourth proportional to 903,440.78, 1,248,212.70 and 768,896.54 is: 1,062,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,440.78 : 1,248,212.70 = 768,896.54 : x
  2. Step 2: Convert to fraction form
    903,440.78/1,248,212.70 = 768,896.54/x
  3. Step 3: Cross multiply
    903,440.78x = 1,248,212.70 × 768,896.54
  4. Step 4: Simplify right side
    903,440.78x = 959,746,416,128.51
  5. Step 5: Solve for x
    x = 959,746,416,128.51/903,440.78
  6. Step 6: Final answer
    x = 1,062,323.56

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1.5x scale

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.