Finding the Fourth Proportional to 903,449.64, 1,353,367.64 and 543,421.70
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Solution
The fourth proportional to 903,449.64, 1,353,367.64 and 543,421.70 is: 814,045.75
Step by Step Solution
- Step 1: Write the proportion equation
903,449.64 : 1,353,367.64 = 543,421.70 : x - Step 2: Convert to fraction form
903,449.64/1,353,367.64 = 543,421.70/x - Step 3: Cross multiply
903,449.64x = 1,353,367.64 × 543,421.70 - Step 4: Simplify right side
903,449.64x = 735,449,343,653.79 - Step 5: Solve for x
x = 735,449,343,653.79/903,449.64 - Step 6: Final answer
x = 814,045.75
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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.