Finding the Fourth Proportional to 4,283,345.20, 6,426,979.86 and 1,855,241.12
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Solution
The fourth proportional to 4,283,345.20, 6,426,979.86 and 1,855,241.12 is: 2,783,711.51
Step by Step Solution
- Step 1: Write the proportion equation
4,283,345.20 : 6,426,979.86 = 1,855,241.12 : x - Step 2: Convert to fraction form
4,283,345.20/6,426,979.86 = 1,855,241.12/x - Step 3: Cross multiply
4,283,345.20x = 6,426,979.86 × 1,855,241.12 - Step 4: Simplify right side
4,283,345.20x = 11,923,597,313,683.84 - Step 5: Solve for x
x = 11,923,597,313,683.84/4,283,345.20 - Step 6: Final answer
x = 2,783,711.51
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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.