Finding the Fourth Proportional to 692,531.18, 955,693.95 and 390,753.26
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Solution
The fourth proportional to 692,531.18, 955,693.95 and 390,753.26 is: 539,240.02
Step by Step Solution
- Step 1: Write the proportion equation
692,531.18 : 955,693.95 = 390,753.26 : x - Step 2: Convert to fraction form
692,531.18/955,693.95 = 390,753.26/x - Step 3: Cross multiply
692,531.18x = 955,693.95 × 390,753.26 - Step 4: Simplify right side
692,531.18x = 373,440,526,524.78 - Step 5: Solve for x
x = 373,440,526,524.78/692,531.18 - Step 6: Final answer
x = 539,240.02
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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.