Finding the Fourth Proportional to 779,853.21, 1,076,204.84 and 457,568.79
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Solution
The fourth proportional to 779,853.21, 1,076,204.84 and 457,568.79 is: 631,449.28
Step by Step Solution
- Step 1: Write the proportion equation
779,853.21 : 1,076,204.84 = 457,568.79 : x - Step 2: Convert to fraction form
779,853.21/1,076,204.84 = 457,568.79/x - Step 3: Cross multiply
779,853.21x = 1,076,204.84 × 457,568.79 - Step 4: Simplify right side
779,853.21x = 492,437,746,430.94 - Step 5: Solve for x
x = 492,437,746,430.94/779,853.21 - Step 6: Final answer
x = 631,449.28
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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.