Finding the Fourth Proportional to 1,312,783.43, 1,811,596.35 and 724,106.20
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Solution
The fourth proportional to 1,312,783.43, 1,811,596.35 and 724,106.20 is: 999,241.85
Step by Step Solution
- Step 1: Write the proportion equation
1,312,783.43 : 1,811,596.35 = 724,106.20 : x - Step 2: Convert to fraction form
1,312,783.43/1,811,596.35 = 724,106.20/x - Step 3: Cross multiply
1,312,783.43x = 1,811,596.35 × 724,106.20 - Step 4: Simplify right side
1,312,783.43x = 1,311,788,144,403.38 - Step 5: Solve for x
x = 1,311,788,144,403.38/1,312,783.43 - Step 6: Final answer
x = 999,241.85
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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.