Finding the Fourth Proportional to 2,130,448.98, 2,939,974.02 and 1,163,583.04
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Solution
The fourth proportional to 2,130,448.98, 2,939,974.02 and 1,163,583.04 is: 1,605,719.71
Step by Step Solution
- Step 1: Write the proportion equation
2,130,448.98 : 2,939,974.02 = 1,163,583.04 : x - Step 2: Convert to fraction form
2,130,448.98/2,939,974.02 = 1,163,583.04/x - Step 3: Cross multiply
2,130,448.98x = 2,939,974.02 × 1,163,583.04 - Step 4: Simplify right side
2,130,448.98x = 3,420,903,907,712.62 - Step 5: Solve for x
x = 3,420,903,907,712.62/2,130,448.98 - Step 6: Final answer
x = 1,605,719.71
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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.