Finding the Fourth Proportional to 579,811.70, 869,717.55 and 579,811.70
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Solution
The fourth proportional to 579,811.70, 869,717.55 and 579,811.70 is: 869,717.55
Step by Step Solution
- Step 1: Write the proportion equation
579,811.70 : 869,717.55 = 579,811.70 : x - Step 2: Convert to fraction form
579,811.70/869,717.55 = 579,811.70/x - Step 3: Cross multiply
579,811.70x = 869,717.55 × 579,811.70 - Step 4: Simplify right side
579,811.70x = 504,272,411,185.34 - Step 5: Solve for x
x = 504,272,411,185.34/579,811.70 - Step 6: Final answer
x = 869,717.55
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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.