Finding the Fourth Proportional to 456,418.70, 683,315.85 and 403,930.70
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Solution
The fourth proportional to 456,418.70, 683,315.85 and 403,930.70 is: 604,734.75
Step by Step Solution
- Step 1: Write the proportion equation
456,418.70 : 683,315.85 = 403,930.70 : x - Step 2: Convert to fraction form
456,418.70/683,315.85 = 403,930.70/x - Step 3: Cross multiply
456,418.70x = 683,315.85 × 403,930.70 - Step 4: Simplify right side
456,418.70x = 276,012,249,611.60 - Step 5: Solve for x
x = 276,012,249,611.60/456,418.70 - Step 6: Final answer
x = 604,734.75
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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.