Finding the Fourth Proportional to 3,462,449.58, 4,778,427.69 and 1,913,678.01
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Solution
The fourth proportional to 3,462,449.58, 4,778,427.69 and 1,913,678.01 is: 2,641,012.32
Step by Step Solution
- Step 1: Write the proportion equation
3,462,449.58 : 4,778,427.69 = 1,913,678.01 : x - Step 2: Convert to fraction form
3,462,449.58/4,778,427.69 = 1,913,678.01/x - Step 3: Cross multiply
3,462,449.58x = 4,778,427.69 × 1,913,678.01 - Step 4: Simplify right side
3,462,449.58x = 9,144,371,992,728.10 - Step 5: Solve for x
x = 9,144,371,992,728.10/3,462,449.58 - Step 6: Final answer
x = 2,641,012.32
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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.