Finding the Fourth Proportional to 2,106,856.04, 2,907,453.30 and 1,139,988.20
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Solution
The fourth proportional to 2,106,856.04, 2,907,453.30 and 1,139,988.20 is: 1,573,179.37
Step by Step Solution
- Step 1: Write the proportion equation
2,106,856.04 : 2,907,453.30 = 1,139,988.20 : x - Step 2: Convert to fraction form
2,106,856.04/2,907,453.30 = 1,139,988.20/x - Step 3: Cross multiply
2,106,856.04x = 2,907,453.30 × 1,139,988.20 - Step 4: Simplify right side
2,106,856.04x = 3,314,462,454,051.06 - Step 5: Solve for x
x = 3,314,462,454,051.06/2,106,856.04 - Step 6: Final answer
x = 1,573,179.37
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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.