Finding the Fourth Proportional to 664,557.48, 917,110.08 and 378,118.80
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Solution
The fourth proportional to 664,557.48, 917,110.08 and 378,118.80 is: 521,815.75
Step by Step Solution
- Step 1: Write the proportion equation
664,557.48 : 917,110.08 = 378,118.80 : x - Step 2: Convert to fraction form
664,557.48/917,110.08 = 378,118.80/x - Step 3: Cross multiply
664,557.48x = 917,110.08 × 378,118.80 - Step 4: Simplify right side
664,557.48x = 346,776,562,917.50 - Step 5: Solve for x
x = 346,776,562,917.50/664,557.48 - Step 6: Final answer
x = 521,815.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.