Finding the Fourth Proportional to 1,431,534.24, 1,975,555.08 and 778,204.17
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Solution
The fourth proportional to 1,431,534.24, 1,975,555.08 and 778,204.17 is: 1,073,942.32
Step by Step Solution
- Step 1: Write the proportion equation
1,431,534.24 : 1,975,555.08 = 778,204.17 : x - Step 2: Convert to fraction form
1,431,534.24/1,975,555.08 = 778,204.17/x - Step 3: Cross multiply
1,431,534.24x = 1,975,555.08 × 778,204.17 - Step 4: Simplify right side
1,431,534.24x = 1,537,385,201,320.68 - Step 5: Solve for x
x = 1,537,385,201,320.68/1,431,534.24 - Step 6: Final answer
x = 1,073,942.32
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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.