Finding the Fourth Proportional to 753,485.11, 1,039,547.99 and 481,712.09
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Solution
The fourth proportional to 753,485.11, 1,039,547.99 and 481,712.09 is: 664,595.53
Step by Step Solution
- Step 1: Write the proportion equation
753,485.11 : 1,039,547.99 = 481,712.09 : x - Step 2: Convert to fraction form
753,485.11/1,039,547.99 = 481,712.09/x - Step 3: Cross multiply
753,485.11x = 1,039,547.99 × 481,712.09 - Step 4: Simplify right side
753,485.11x = 500,762,834,918.20 - Step 5: Solve for x
x = 500,762,834,918.20/753,485.11 - Step 6: Final answer
x = 664,595.53
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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.