Home / 1,362,436.20-1,880,020.80-839,064

Finding the Fourth Proportional to 1,362,436.20, 1,880,020.80 and 839,064

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Solution

The fourth proportional to 1,362,436.20, 1,880,020.80 and 839,064 is: 1,157,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,436.20 : 1,880,020.80 = 839,064 : x
  2. Step 2: Convert to fraction form
    1,362,436.20/1,880,020.80 = 839,064/x
  3. Step 3: Cross multiply
    1,362,436.20x = 1,880,020.80 × 839,064
  4. Step 4: Simplify right side
    1,362,436.20x = 1,577,457,772,531.20
  5. Step 5: Solve for x
    x = 1,577,457,772,531.20/1,362,436.20
  6. Step 6: Final answer
    x = 1,157,821.39

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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.