Home / 1,239,412.21-1,858,970.67-340,945.22

Finding the Fourth Proportional to 1,239,412.21, 1,858,970.67 and 340,945.22

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Solution

The fourth proportional to 1,239,412.21, 1,858,970.67 and 340,945.22 is: 511,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,412.21 : 1,858,970.67 = 340,945.22 : x
  2. Step 2: Convert to fraction form
    1,239,412.21/1,858,970.67 = 340,945.22/x
  3. Step 3: Cross multiply
    1,239,412.21x = 1,858,970.67 × 340,945.22
  4. Step 4: Simplify right side
    1,239,412.21x = 633,807,164,056.70
  5. Step 5: Solve for x
    x = 633,807,164,056.70/1,239,412.21
  6. Step 6: Final answer
    x = 511,377.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.