Finding the Fourth Proportional to 918,586.55, 1,267,654.35 and 505,149.98
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Solution
The fourth proportional to 918,586.55, 1,267,654.35 and 505,149.98 is: 697,109.68
Step by Step Solution
- Step 1: Write the proportion equation
918,586.55 : 1,267,654.35 = 505,149.98 : x - Step 2: Convert to fraction form
918,586.55/1,267,654.35 = 505,149.98/x - Step 3: Cross multiply
918,586.55x = 1,267,654.35 × 505,149.98 - Step 4: Simplify right side
918,586.55x = 640,355,574,018.65 - Step 5: Solve for x
x = 640,355,574,018.65/918,586.55 - Step 6: Final answer
x = 697,109.68
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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.