Finding the Fourth Proportional to 614,430.20, 921,645.30 and 564,663.80
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Solution
The fourth proportional to 614,430.20, 921,645.30 and 564,663.80 is: 846,995.70
Step by Step Solution
- Step 1: Write the proportion equation
614,430.20 : 921,645.30 = 564,663.80 : x - Step 2: Convert to fraction form
614,430.20/921,645.30 = 564,663.80/x - Step 3: Cross multiply
614,430.20x = 921,645.30 × 564,663.80 - Step 4: Simplify right side
614,430.20x = 520,419,737,350.14 - Step 5: Solve for x
x = 520,419,737,350.14/614,430.20 - Step 6: Final answer
x = 846,995.70
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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.