Finding the Fourth Proportional to 1,142,428.35, 1,576,344.14 and 734,436.62
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Solution
The fourth proportional to 1,142,428.35, 1,576,344.14 and 734,436.62 is: 1,013,389.47
Step by Step Solution
- Step 1: Write the proportion equation
1,142,428.35 : 1,576,344.14 = 734,436.62 : x - Step 2: Convert to fraction form
1,142,428.35/1,576,344.14 = 734,436.62/x - Step 3: Cross multiply
1,142,428.35x = 1,576,344.14 × 734,436.62 - Step 4: Simplify right side
1,142,428.35x = 1,157,724,859,249.93 - Step 5: Solve for x
x = 1,157,724,859,249.93/1,142,428.35 - Step 6: Final answer
x = 1,013,389.47
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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.