Finding the Fourth Proportional to 698,774.23, 964,342.62 and 392,946.85
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Solution
The fourth proportional to 698,774.23, 964,342.62 and 392,946.85 is: 542,285.88
Step by Step Solution
- Step 1: Write the proportion equation
698,774.23 : 964,342.62 = 392,946.85 : x - Step 2: Convert to fraction form
698,774.23/964,342.62 = 392,946.85/x - Step 3: Cross multiply
698,774.23x = 964,342.62 × 392,946.85 - Step 4: Simplify right side
698,774.23x = 378,935,394,849.75 - Step 5: Solve for x
x = 378,935,394,849.75/698,774.23 - Step 6: Final answer
x = 542,285.88
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1.5x scale
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.