Finding the Fourth Proportional to 875,641.68, 1,208,369.41 and 493,668.77
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Solution
The fourth proportional to 875,641.68, 1,208,369.41 and 493,668.77 is: 681,253.81
Step by Step Solution
- Step 1: Write the proportion equation
875,641.68 : 1,208,369.41 = 493,668.77 : x - Step 2: Convert to fraction form
875,641.68/1,208,369.41 = 493,668.77/x - Step 3: Cross multiply
875,641.68x = 1,208,369.41 × 493,668.77 - Step 4: Simplify right side
875,641.68x = 596,534,233,064.31 - Step 5: Solve for x
x = 596,534,233,064.31/875,641.68 - Step 6: Final answer
x = 681,253.81
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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.