Finding the Fourth Proportional to 1,931,410.06, 2,665,675.74 and 1,115,467.09
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Solution
The fourth proportional to 1,931,410.06, 2,665,675.74 and 1,115,467.09 is: 1,539,535.09
Step by Step Solution
- Step 1: Write the proportion equation
1,931,410.06 : 2,665,675.74 = 1,115,467.09 : x - Step 2: Convert to fraction form
1,931,410.06/2,665,675.74 = 1,115,467.09/x - Step 3: Cross multiply
1,931,410.06x = 2,665,675.74 × 1,115,467.09 - Step 4: Simplify right side
1,931,410.06x = 2,973,473,560,581.40 - Step 5: Solve for x
x = 2,973,473,560,581.40/1,931,410.06 - Step 6: Final answer
x = 1,539,535.09
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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.