Finding the Fourth Proportional to 1,318,915.79, 1,977,340.14 and 520,794.75
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Solution
The fourth proportional to 1,318,915.79, 1,977,340.14 and 520,794.75 is: 780,784.02
Step by Step Solution
- Step 1: Write the proportion equation
1,318,915.79 : 1,977,340.14 = 520,794.75 : x - Step 2: Convert to fraction form
1,318,915.79/1,977,340.14 = 520,794.75/x - Step 3: Cross multiply
1,318,915.79x = 1,977,340.14 × 520,794.75 - Step 4: Simplify right side
1,318,915.79x = 1,029,788,363,876.26 - Step 5: Solve for x
x = 1,029,788,363,876.26/1,318,915.79 - Step 6: Final answer
x = 780,784.02
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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.