Finding the Fourth Proportional to 455,612.13, 683,408.93 and 118,645.31
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Solution
The fourth proportional to 455,612.13, 683,408.93 and 118,645.31 is: 177,965.54
Step by Step Solution
- Step 1: Write the proportion equation
455,612.13 : 683,408.93 = 118,645.31 : x - Step 2: Convert to fraction form
455,612.13/683,408.93 = 118,645.31/x - Step 3: Cross multiply
455,612.13x = 683,408.93 × 118,645.31 - Step 4: Simplify right side
455,612.13x = 81,083,260,346.35 - Step 5: Solve for x
x = 81,083,260,346.35/455,612.13 - Step 6: Final answer
x = 177,965.54
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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.