Finding the Fourth Proportional to 1,328,742.68, 1,833,664.40 and 725,130.68
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Solution
The fourth proportional to 1,328,742.68, 1,833,664.40 and 725,130.68 is: 1,000,680.07
Step by Step Solution
- Step 1: Write the proportion equation
1,328,742.68 : 1,833,664.40 = 725,130.68 : x - Step 2: Convert to fraction form
1,328,742.68/1,833,664.40 = 725,130.68/x - Step 3: Cross multiply
1,328,742.68x = 1,833,664.40 × 725,130.68 - Step 4: Simplify right side
1,328,742.68x = 1,329,646,313,263.79 - Step 5: Solve for x
x = 1,329,646,313,263.79/1,328,742.68 - Step 6: Final answer
x = 1,000,680.07
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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.