Finding the Fourth Proportional to 628,719.39, 865,979.98 and 483,246.99
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Solution
The fourth proportional to 628,719.39, 865,979.98 and 483,246.99 is: 665,610.48
Step by Step Solution
- Step 1: Write the proportion equation
628,719.39 : 865,979.98 = 483,246.99 : x - Step 2: Convert to fraction form
628,719.39/865,979.98 = 483,246.99/x - Step 3: Cross multiply
628,719.39x = 865,979.98 × 483,246.99 - Step 4: Simplify right side
628,719.39x = 418,482,217,527.14 - Step 5: Solve for x
x = 418,482,217,527.14/628,719.39 - Step 6: Final answer
x = 665,610.48
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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.