Finding the Fourth Proportional to 818,866.36, 1,228,051.68 and 286,288.12
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Solution
The fourth proportional to 818,866.36, 1,228,051.68 and 286,288.12 is: 429,345.52
Step by Step Solution
- Step 1: Write the proportion equation
818,866.36 : 1,228,051.68 = 286,288.12 : x - Step 2: Convert to fraction form
818,866.36/1,228,051.68 = 286,288.12/x - Step 3: Cross multiply
818,866.36x = 1,228,051.68 × 286,288.12 - Step 4: Simplify right side
818,866.36x = 351,576,606,730.04 - Step 5: Solve for x
x = 351,576,606,730.04/818,866.36 - Step 6: Final answer
x = 429,345.52
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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.