Home / 1,380,680.33-1,903,708.56-945,308.78

Finding the Fourth Proportional to 1,380,680.33, 1,903,708.56 and 945,308.78

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Solution

The fourth proportional to 1,380,680.33, 1,903,708.56 and 945,308.78 is: 1,303,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,680.33 : 1,903,708.56 = 945,308.78 : x
  2. Step 2: Convert to fraction form
    1,380,680.33/1,903,708.56 = 945,308.78/x
  3. Step 3: Cross multiply
    1,380,680.33x = 1,903,708.56 × 945,308.78
  4. Step 4: Simplify right side
    1,380,680.33x = 1,799,592,402,084.07
  5. Step 5: Solve for x
    x = 1,799,592,402,084.07/1,380,680.33
  6. Step 6: Final answer
    x = 1,303,409.89

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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.