Finding the Fourth Proportional to 859,063.20, 1,185,118.32 and 553,029.84
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Solution
The fourth proportional to 859,063.20, 1,185,118.32 and 553,029.84 is: 762,930.82
Step by Step Solution
- Step 1: Write the proportion equation
859,063.20 : 1,185,118.32 = 553,029.84 : x - Step 2: Convert to fraction form
859,063.20/1,185,118.32 = 553,029.84/x - Step 3: Cross multiply
859,063.20x = 1,185,118.32 × 553,029.84 - Step 4: Simplify right side
859,063.20x = 655,405,794,890.67 - Step 5: Solve for x
x = 655,405,794,890.67/859,063.20 - Step 6: Final answer
x = 762,930.82
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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.