Finding the Fourth Proportional to 779,854.21, 1,076,206.22 and 457,569.79
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Solution
The fourth proportional to 779,854.21, 1,076,206.22 and 457,569.79 is: 631,450.66
Step by Step Solution
- Step 1: Write the proportion equation
779,854.21 : 1,076,206.22 = 457,569.79 : x - Step 2: Convert to fraction form
779,854.21/1,076,206.22 = 457,569.79/x - Step 3: Cross multiply
779,854.21x = 1,076,206.22 × 457,569.79 - Step 4: Simplify right side
779,854.21x = 492,439,454,082.09 - Step 5: Solve for x
x = 492,439,454,082.09/779,854.21 - Step 6: Final answer
x = 631,450.66
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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.