Finding the Fourth Proportional to 1,399,675.23, 1,931,428.68 and 779,433.54
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Solution
The fourth proportional to 1,399,675.23, 1,931,428.68 and 779,433.54 is: 1,075,549.71
Step by Step Solution
- Step 1: Write the proportion equation
1,399,675.23 : 1,931,428.68 = 779,433.54 : x - Step 2: Convert to fraction form
1,399,675.23/1,931,428.68 = 779,433.54/x - Step 3: Cross multiply
1,399,675.23x = 1,931,428.68 × 779,433.54 - Step 4: Simplify right side
1,399,675.23x = 1,505,420,283,144.19 - Step 5: Solve for x
x = 1,505,420,283,144.19/1,399,675.23 - Step 6: Final answer
x = 1,075,549.71
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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.