Finding the Fourth Proportional to 512,808.58, 707,675.81 and 286,454.08
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Solution
The fourth proportional to 512,808.58, 707,675.81 and 286,454.08 is: 395,306.61
Step by Step Solution
- Step 1: Write the proportion equation
512,808.58 : 707,675.81 = 286,454.08 : x - Step 2: Convert to fraction form
512,808.58/707,675.81 = 286,454.08/x - Step 3: Cross multiply
512,808.58x = 707,675.81 × 286,454.08 - Step 4: Simplify right side
512,808.58x = 202,716,623,091.81 - Step 5: Solve for x
x = 202,716,623,091.81/512,808.58 - Step 6: Final answer
x = 395,306.61
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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.