Finding the Fourth Proportional to 386,135.70, 579,203.55 and 292,823.70
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Solution
The fourth proportional to 386,135.70, 579,203.55 and 292,823.70 is: 439,235.55
Step by Step Solution
- Step 1: Write the proportion equation
386,135.70 : 579,203.55 = 292,823.70 : x - Step 2: Convert to fraction form
386,135.70/579,203.55 = 292,823.70/x - Step 3: Cross multiply
386,135.70x = 579,203.55 × 292,823.70 - Step 4: Simplify right side
386,135.70x = 169,604,526,564.14 - Step 5: Solve for x
x = 169,604,526,564.14/386,135.70 - Step 6: Final answer
x = 439,235.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.