Finding the Fourth Proportional to 579,634.70, 869,452.05 and 402,487.70
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Solution
The fourth proportional to 579,634.70, 869,452.05 and 402,487.70 is: 603,731.55
Step by Step Solution
- Step 1: Write the proportion equation
579,634.70 : 869,452.05 = 402,487.70 : x - Step 2: Convert to fraction form
579,634.70/869,452.05 = 402,487.70/x - Step 3: Cross multiply
579,634.70x = 869,452.05 × 402,487.70 - Step 4: Simplify right side
579,634.70x = 349,943,755,864.79 - Step 5: Solve for x
x = 349,943,755,864.79/579,634.70 - Step 6: Final answer
x = 603,731.55
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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.