Home / 1,187,999.40-1,778,888.70-870,738.60

Finding the Fourth Proportional to 1,187,999.40, 1,778,888.70 and 870,738.60

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Solution

The fourth proportional to 1,187,999.40, 1,778,888.70 and 870,738.60 is: 1,303,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,999.40 : 1,778,888.70 = 870,738.60 : x
  2. Step 2: Convert to fraction form
    1,187,999.40/1,778,888.70 = 870,738.60/x
  3. Step 3: Cross multiply
    1,187,999.40x = 1,778,888.70 × 870,738.60
  4. Step 4: Simplify right side
    1,187,999.40x = 1,548,947,056,193.82
  5. Step 5: Solve for x
    x = 1,548,947,056,193.82/1,187,999.40
  6. Step 6: Final answer
    x = 1,303,828.15

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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.