Finding the Fourth Proportional to 503,955.30, 695,430.02 and 289,075.26
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Solution
The fourth proportional to 503,955.30, 695,430.02 and 289,075.26 is: 398,907.63
Step by Step Solution
- Step 1: Write the proportion equation
503,955.30 : 695,430.02 = 289,075.26 : x - Step 2: Convert to fraction form
503,955.30/695,430.02 = 289,075.26/x - Step 3: Cross multiply
503,955.30x = 695,430.02 × 289,075.26 - Step 4: Simplify right side
503,955.30x = 201,031,613,843.31 - Step 5: Solve for x
x = 201,031,613,843.31/503,955.30 - Step 6: Final answer
x = 398,907.63
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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.