Finding the Fourth Proportional to 579,821.58, 869,814.36 and 180,502.65
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Solution
The fourth proportional to 579,821.58, 869,814.36 and 180,502.65 is: 270,779.50
Step by Step Solution
- Step 1: Write the proportion equation
579,821.58 : 869,814.36 = 180,502.65 : x - Step 2: Convert to fraction form
579,821.58/869,814.36 = 180,502.65/x - Step 3: Cross multiply
579,821.58x = 869,814.36 × 180,502.65 - Step 4: Simplify right side
579,821.58x = 157,003,796,988.05 - Step 5: Solve for x
x = 157,003,796,988.05/579,821.58 - Step 6: Final answer
x = 270,779.50
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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.