Finding the Fourth Proportional to 1,129,596.12, 1,558,860.52 and 613,349.72
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Solution
The fourth proportional to 1,129,596.12, 1,558,860.52 and 613,349.72 is: 846,432.32
Step by Step Solution
- Step 1: Write the proportion equation
1,129,596.12 : 1,558,860.52 = 613,349.72 : x - Step 2: Convert to fraction form
1,129,596.12/1,558,860.52 = 613,349.72/x - Step 3: Cross multiply
1,129,596.12x = 1,558,860.52 × 613,349.72 - Step 4: Simplify right side
1,129,596.12x = 956,126,663,461.05 - Step 5: Solve for x
x = 956,126,663,461.05/1,129,596.12 - Step 6: Final answer
x = 846,432.32
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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.