Finding the Fourth Proportional to 917,361.11, 1,266,000.36 and 509,464.76
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Solution
The fourth proportional to 917,361.11, 1,266,000.36 and 509,464.76 is: 703,084.71
Step by Step Solution
- Step 1: Write the proportion equation
917,361.11 : 1,266,000.36 = 509,464.76 : x - Step 2: Convert to fraction form
917,361.11/1,266,000.36 = 509,464.76/x - Step 3: Cross multiply
917,361.11x = 1,266,000.36 × 509,464.76 - Step 4: Simplify right side
917,361.11x = 644,982,563,237.31 - Step 5: Solve for x
x = 644,982,563,237.31/917,361.11 - Step 6: Final answer
x = 703,084.71
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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.