Finding the Fourth Proportional to 1,248,623.78, 1,872,858.78 and 768,942.99
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Solution
The fourth proportional to 1,248,623.78, 1,872,858.78 and 768,942.99 is: 1,153,367.14
Step by Step Solution
- Step 1: Write the proportion equation
1,248,623.78 : 1,872,858.78 = 768,942.99 : x - Step 2: Convert to fraction form
1,248,623.78/1,872,858.78 = 768,942.99/x - Step 3: Cross multiply
1,248,623.78x = 1,872,858.78 × 768,942.99 - Step 4: Simplify right side
1,248,623.78x = 1,440,121,630,140.95 - Step 5: Solve for x
x = 1,440,121,630,140.95/1,248,623.78 - Step 6: Final answer
x = 1,153,367.14
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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.