Finding the Fourth Proportional to 1,042,075.79, 1,438,064.58 and 565,147.79
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Solution
The fourth proportional to 1,042,075.79, 1,438,064.58 and 565,147.79 is: 779,903.94
Step by Step Solution
- Step 1: Write the proportion equation
1,042,075.79 : 1,438,064.58 = 565,147.79 : x - Step 2: Convert to fraction form
1,042,075.79/1,438,064.58 = 565,147.79/x - Step 3: Cross multiply
1,042,075.79x = 1,438,064.58 × 565,147.79 - Step 4: Simplify right side
1,042,075.79x = 812,719,012,073.96 - Step 5: Solve for x
x = 812,719,012,073.96/1,042,075.79 - Step 6: Final answer
x = 779,903.94
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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.