Finding the Fourth Proportional to 837,643.98, 1,257,191.46 and 438,564
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Solution
The fourth proportional to 837,643.98, 1,257,191.46 and 438,564 is: 658,225.84
Step by Step Solution
- Step 1: Write the proportion equation
837,643.98 : 1,257,191.46 = 438,564 : x - Step 2: Convert to fraction form
837,643.98/1,257,191.46 = 438,564/x - Step 3: Cross multiply
837,643.98x = 1,257,191.46 × 438,564 - Step 4: Simplify right side
837,643.98x = 551,358,915,463.44 - Step 5: Solve for x
x = 551,358,915,463.44/837,643.98 - Step 6: Final answer
x = 658,225.84
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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.