Finding the Fourth Proportional to 918,645.08, 1,377,878.53 and 278,954.36
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Solution
The fourth proportional to 918,645.08, 1,377,878.53 and 278,954.36 is: 418,404.48
Step by Step Solution
- Step 1: Write the proportion equation
918,645.08 : 1,377,878.53 = 278,954.36 : x - Step 2: Convert to fraction form
918,645.08/1,377,878.53 = 278,954.36/x - Step 3: Cross multiply
918,645.08x = 1,377,878.53 × 278,954.36 - Step 4: Simplify right side
918,645.08x = 384,365,217,629.46 - Step 5: Solve for x
x = 384,365,217,629.46/918,645.08 - Step 6: Final answer
x = 418,404.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.