Finding the Fourth Proportional to 1,124,328.56, 1,551,324.80 and 688,837.92
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Solution
The fourth proportional to 1,124,328.56, 1,551,324.80 and 688,837.92 is: 950,444.01
Step by Step Solution
- Step 1: Write the proportion equation
1,124,328.56 : 1,551,324.80 = 688,837.92 : x - Step 2: Convert to fraction form
1,124,328.56/1,551,324.80 = 688,837.92/x - Step 3: Cross multiply
1,124,328.56x = 1,551,324.80 × 688,837.92 - Step 4: Simplify right side
1,124,328.56x = 1,068,611,348,476.42 - Step 5: Solve for x
x = 1,068,611,348,476.42/1,124,328.56 - Step 6: Final answer
x = 950,444.01
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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.