Finding the Fourth Proportional to 603,681.99, 905,550.45 and 426,977.79
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Solution
The fourth proportional to 603,681.99, 905,550.45 and 426,977.79 is: 640,486.11
Step by Step Solution
- Step 1: Write the proportion equation
603,681.99 : 905,550.45 = 426,977.79 : x - Step 2: Convert to fraction form
603,681.99/905,550.45 = 426,977.79/x - Step 3: Cross multiply
603,681.99x = 905,550.45 × 426,977.79 - Step 4: Simplify right side
603,681.99x = 386,649,929,874.51 - Step 5: Solve for x
x = 386,649,929,874.51/603,681.99 - Step 6: Final answer
x = 640,486.11
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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.