Finding the Fourth Proportional to 624,452.79, 861,765.74 and 382,688.67
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Solution
The fourth proportional to 624,452.79, 861,765.74 and 382,688.67 is: 528,123.17
Step by Step Solution
- Step 1: Write the proportion equation
624,452.79 : 861,765.74 = 382,688.67 : x - Step 2: Convert to fraction form
624,452.79/861,765.74 = 382,688.67/x - Step 3: Cross multiply
624,452.79x = 861,765.74 × 382,688.67 - Step 4: Simplify right side
624,452.79x = 329,787,983,874.31 - Step 5: Solve for x
x = 329,787,983,874.31/624,452.79 - Step 6: Final answer
x = 528,123.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.