Finding the Fourth Proportional to 483,115.80, 724,673.70 and 429,971.70
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Solution
The fourth proportional to 483,115.80, 724,673.70 and 429,971.70 is: 644,957.55
Step by Step Solution
- Step 1: Write the proportion equation
483,115.80 : 724,673.70 = 429,971.70 : x - Step 2: Convert to fraction form
483,115.80/724,673.70 = 429,971.70/x - Step 3: Cross multiply
483,115.80x = 724,673.70 × 429,971.70 - Step 4: Simplify right side
483,115.80x = 311,589,182,734.29 - Step 5: Solve for x
x = 311,589,182,734.29/483,115.80 - Step 6: Final answer
x = 644,957.55
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Similar ratio
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1.5x scale
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.