Finding the Fourth Proportional to 874,579.21, 1,206,506.95 and 511,780.51
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Solution
The fourth proportional to 874,579.21, 1,206,506.95 and 511,780.51 is: 706,015.80
Step by Step Solution
- Step 1: Write the proportion equation
874,579.21 : 1,206,506.95 = 511,780.51 : x - Step 2: Convert to fraction form
874,579.21/1,206,506.95 = 511,780.51/x - Step 3: Cross multiply
874,579.21x = 1,206,506.95 × 511,780.51 - Step 4: Simplify right side
874,579.21x = 617,466,742,418.23 - Step 5: Solve for x
x = 617,466,742,418.23/874,579.21 - Step 6: Final answer
x = 706,015.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.