Finding the Fourth Proportional to 1,328,071.68, 1,832,739.84 and 724,492.80
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Solution
The fourth proportional to 1,328,071.68, 1,832,739.84 and 724,492.80 is: 999,800.57
Step by Step Solution
- Step 1: Write the proportion equation
1,328,071.68 : 1,832,739.84 = 724,492.80 : x - Step 2: Convert to fraction form
1,328,071.68/1,832,739.84 = 724,492.80/x - Step 3: Cross multiply
1,328,071.68x = 1,832,739.84 × 724,492.80 - Step 4: Simplify right side
1,328,071.68x = 1,327,806,818,353.15 - Step 5: Solve for x
x = 1,327,806,818,353.15/1,328,071.68 - Step 6: Final answer
x = 999,800.57
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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.