Finding the Fourth Proportional to 1,290,772.42, 1,936,280.05 and 379,955.49
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Solution
The fourth proportional to 1,290,772.42, 1,936,280.05 and 379,955.49 is: 569,968.98
Step by Step Solution
- Step 1: Write the proportion equation
1,290,772.42 : 1,936,280.05 = 379,955.49 : x - Step 2: Convert to fraction form
1,290,772.42/1,936,280.05 = 379,955.49/x - Step 3: Cross multiply
1,290,772.42x = 1,936,280.05 × 379,955.49 - Step 4: Simplify right side
1,290,772.42x = 735,700,235,174.98 - Step 5: Solve for x
x = 735,700,235,174.98/1,290,772.42 - Step 6: Final answer
x = 569,968.98
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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.