Finding the Fourth Proportional to 2,124,640.98, 2,931,988.32 and 1,157,768.28
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Solution
The fourth proportional to 2,124,640.98, 2,931,988.32 and 1,157,768.28 is: 1,597,711.38
Step by Step Solution
- Step 1: Write the proportion equation
2,124,640.98 : 2,931,988.32 = 1,157,768.28 : x - Step 2: Convert to fraction form
2,124,640.98/2,931,988.32 = 1,157,768.28/x - Step 3: Cross multiply
2,124,640.98x = 2,931,988.32 × 1,157,768.28 - Step 4: Simplify right side
2,124,640.98x = 3,394,563,074,226.49 - Step 5: Solve for x
x = 3,394,563,074,226.49/2,124,640.98 - Step 6: Final answer
x = 1,597,711.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.