Finding the Fourth Proportional to 640,486.58, 959,953.02 and 470,430.05
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Solution
The fourth proportional to 640,486.58, 959,953.02 and 470,430.05 is: 705,074.49
Step by Step Solution
- Step 1: Write the proportion equation
640,486.58 : 959,953.02 = 470,430.05 : x - Step 2: Convert to fraction form
640,486.58/959,953.02 = 470,430.05/x - Step 3: Cross multiply
640,486.58x = 959,953.02 × 470,430.05 - Step 4: Simplify right side
640,486.58x = 451,590,747,196.25 - Step 5: Solve for x
x = 451,590,747,196.25/640,486.58 - Step 6: Final answer
x = 705,074.49
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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.