Finding the Fourth Proportional to 642,260.48, 963,421.44 and 310,115.84
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Solution
The fourth proportional to 642,260.48, 963,421.44 and 310,115.84 is: 465,188.59
Step by Step Solution
- Step 1: Write the proportion equation
642,260.48 : 963,421.44 = 310,115.84 : x - Step 2: Convert to fraction form
642,260.48/963,421.44 = 310,115.84/x - Step 3: Cross multiply
642,260.48x = 963,421.44 × 310,115.84 - Step 4: Simplify right side
642,260.48x = 298,772,249,139.61 - Step 5: Solve for x
x = 298,772,249,139.61/642,260.48 - Step 6: Final answer
x = 465,188.59
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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.