Finding the Fourth Proportional to 579,706.99, 869,566.08 and 219,781.05
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Solution
The fourth proportional to 579,706.99, 869,566.08 and 219,781.05 is: 329,673.69
Step by Step Solution
- Step 1: Write the proportion equation
579,706.99 : 869,566.08 = 219,781.05 : x - Step 2: Convert to fraction form
579,706.99/869,566.08 = 219,781.05/x - Step 3: Cross multiply
579,706.99x = 869,566.08 × 219,781.05 - Step 4: Simplify right side
579,706.99x = 191,114,143,670.09 - Step 5: Solve for x
x = 191,114,143,670.09/579,706.99 - Step 6: Final answer
x = 329,673.69
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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.