Finding the Fourth Proportional to 1,108,014.67, 1,529,181.74 and 642,970.99
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Solution
The fourth proportional to 1,108,014.67, 1,529,181.74 and 642,970.99 is: 887,370.46
Step by Step Solution
- Step 1: Write the proportion equation
1,108,014.67 : 1,529,181.74 = 642,970.99 : x - Step 2: Convert to fraction form
1,108,014.67/1,529,181.74 = 642,970.99/x - Step 3: Cross multiply
1,108,014.67x = 1,529,181.74 × 642,970.99 - Step 4: Simplify right side
1,108,014.67x = 983,219,486,396.96 - Step 5: Solve for x
x = 983,219,486,396.96/1,108,014.67 - Step 6: Final answer
x = 887,370.46
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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.