Finding the Fourth Proportional to 1,315,613.68, 1,815,352.77 and 771,544.06
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Solution
The fourth proportional to 1,315,613.68, 1,815,352.77 and 771,544.06 is: 1,064,616.97
Step by Step Solution
- Step 1: Write the proportion equation
1,315,613.68 : 1,815,352.77 = 771,544.06 : x - Step 2: Convert to fraction form
1,315,613.68/1,815,352.77 = 771,544.06/x - Step 3: Cross multiply
1,315,613.68x = 1,815,352.77 × 771,544.06 - Step 4: Simplify right side
1,315,613.68x = 1,400,624,646,498.05 - Step 5: Solve for x
x = 1,400,624,646,498.05/1,315,613.68 - Step 6: Final answer
x = 1,064,616.97
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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.