Finding the Fourth Proportional to 854,205.87, 1,178,828.76 and 472,257.26
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Solution
The fourth proportional to 854,205.87, 1,178,828.76 and 472,257.26 is: 651,728.65
Step by Step Solution
- Step 1: Write the proportion equation
854,205.87 : 1,178,828.76 = 472,257.26 : x - Step 2: Convert to fraction form
854,205.87/1,178,828.76 = 472,257.26/x - Step 3: Cross multiply
854,205.87x = 1,178,828.76 × 472,257.26 - Step 4: Simplify right side
854,205.87x = 556,710,434,312.65 - Step 5: Solve for x
x = 556,710,434,312.65/854,205.87 - Step 6: Final answer
x = 651,728.65
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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.