Finding the Fourth Proportional to 1,490,539.08, 2,056,943.85 and 811,475.58
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Solution
The fourth proportional to 1,490,539.08, 2,056,943.85 and 811,475.58 is: 1,119,836.26
Step by Step Solution
- Step 1: Write the proportion equation
1,490,539.08 : 2,056,943.85 = 811,475.58 : x - Step 2: Convert to fraction form
1,490,539.08/2,056,943.85 = 811,475.58/x - Step 3: Cross multiply
1,490,539.08x = 2,056,943.85 × 811,475.58 - Step 4: Simplify right side
1,490,539.08x = 1,669,159,703,706.18 - Step 5: Solve for x
x = 1,669,159,703,706.18/1,490,539.08 - Step 6: Final answer
x = 1,119,836.26
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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.