Finding the Fourth Proportional to 1,557,936.11, 2,337,022.35 and 420,681.75
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Solution
The fourth proportional to 1,557,936.11, 2,337,022.35 and 420,681.75 is: 631,054.54
Step by Step Solution
- Step 1: Write the proportion equation
1,557,936.11 : 2,337,022.35 = 420,681.75 : x - Step 2: Convert to fraction form
1,557,936.11/2,337,022.35 = 420,681.75/x - Step 3: Cross multiply
1,557,936.11x = 2,337,022.35 × 420,681.75 - Step 4: Simplify right side
1,557,936.11x = 983,142,651,987.11 - Step 5: Solve for x
x = 983,142,651,987.11/1,557,936.11 - Step 6: Final answer
x = 631,054.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.