Finding the Fourth Proportional to 874,607.28, 1,206,962.28 and 492,640.08
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Solution
The fourth proportional to 874,607.28, 1,206,962.28 and 492,640.08 is: 679,845.70
Step by Step Solution
- Step 1: Write the proportion equation
874,607.28 : 1,206,962.28 = 492,640.08 : x - Step 2: Convert to fraction form
874,607.28/1,206,962.28 = 492,640.08/x - Step 3: Cross multiply
874,607.28x = 1,206,962.28 × 492,640.08 - Step 4: Simplify right side
874,607.28x = 594,597,994,176.18 - Step 5: Solve for x
x = 594,597,994,176.18/874,607.28 - Step 6: Final answer
x = 679,845.70
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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.