Finding the Fourth Proportional to 389,823.36, 537,965.08 and 228,794.54
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Solution
The fourth proportional to 389,823.36, 537,965.08 and 228,794.54 is: 315,741.66
Step by Step Solution
- Step 1: Write the proportion equation
389,823.36 : 537,965.08 = 228,794.54 : x - Step 2: Convert to fraction form
389,823.36/537,965.08 = 228,794.54/x - Step 3: Cross multiply
389,823.36x = 537,965.08 × 228,794.54 - Step 4: Simplify right side
389,823.36x = 123,083,473,014.66 - Step 5: Solve for x
x = 123,083,473,014.66/389,823.36 - Step 6: Final answer
x = 315,741.66
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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.