Finding the Fourth Proportional to 664,317.79, 916,787.72 and 373,948.09
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Solution
The fourth proportional to 664,317.79, 916,787.72 and 373,948.09 is: 516,064.78
Step by Step Solution
- Step 1: Write the proportion equation
664,317.79 : 916,787.72 = 373,948.09 : x - Step 2: Convert to fraction form
664,317.79/916,787.72 = 373,948.09/x - Step 3: Cross multiply
664,317.79x = 916,787.72 × 373,948.09 - Step 4: Simplify right side
664,317.79x = 342,831,015,472.36 - Step 5: Solve for x
x = 342,831,015,472.36/664,317.79 - Step 6: Final answer
x = 516,064.78
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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.