Finding the Fourth Proportional to 639,704.84, 959,889.35 and 260,903.48
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Solution
The fourth proportional to 639,704.84, 959,889.35 and 260,903.48 is: 391,490.66
Step by Step Solution
- Step 1: Write the proportion equation
639,704.84 : 959,889.35 = 260,903.48 : x - Step 2: Convert to fraction form
639,704.84/959,889.35 = 260,903.48/x - Step 3: Cross multiply
639,704.84x = 959,889.35 × 260,903.48 - Step 4: Simplify right side
639,704.84x = 250,438,471,829.94 - Step 5: Solve for x
x = 250,438,471,829.94/639,704.84 - Step 6: Final answer
x = 391,490.66
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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.