Finding the Fourth Proportional to 674,248.40, 930,491.08 and 387,768.70
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Solution
The fourth proportional to 674,248.40, 930,491.08 and 387,768.70 is: 535,137.07
Step by Step Solution
- Step 1: Write the proportion equation
674,248.40 : 930,491.08 = 387,768.70 : x - Step 2: Convert to fraction form
674,248.40/930,491.08 = 387,768.70/x - Step 3: Cross multiply
674,248.40x = 930,491.08 × 387,768.70 - Step 4: Simplify right side
674,248.40x = 360,815,316,453.20 - Step 5: Solve for x
x = 360,815,316,453.20/674,248.40 - Step 6: Final answer
x = 535,137.07
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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.