Finding the Fourth Proportional to 1,101,302.43, 1,516,965.62 and 778,457.49
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Solution
The fourth proportional to 1,101,302.43, 1,516,965.62 and 778,457.49 is: 1,072,269.72
Step by Step Solution
- Step 1: Write the proportion equation
1,101,302.43 : 1,516,965.62 = 778,457.49 : x - Step 2: Convert to fraction form
1,101,302.43/1,516,965.62 = 778,457.49/x - Step 3: Cross multiply
1,101,302.43x = 1,516,965.62 × 778,457.49 - Step 4: Simplify right side
1,101,302.43x = 1,180,893,243,759.41 - Step 5: Solve for x
x = 1,180,893,243,759.41/1,101,302.43 - Step 6: Final answer
x = 1,072,269.72
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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.