Finding the Fourth Proportional to 1,927,813.80, 2,891,720.70 and 1,854,330.60
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Solution
The fourth proportional to 1,927,813.80, 2,891,720.70 and 1,854,330.60 is: 2,781,495.90
Step by Step Solution
- Step 1: Write the proportion equation
1,927,813.80 : 2,891,720.70 = 1,854,330.60 : x - Step 2: Convert to fraction form
1,927,813.80/2,891,720.70 = 1,854,330.60/x - Step 3: Cross multiply
1,927,813.80x = 2,891,720.70 × 1,854,330.60 - Step 4: Simplify right side
1,927,813.80x = 5,362,206,180,663.42 - Step 5: Solve for x
x = 5,362,206,180,663.42/1,927,813.80 - Step 6: Final answer
x = 2,781,495.90
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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.