Finding the Fourth Proportional to 447,639.98, 617,724.14 and 243,686.63
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Solution
The fourth proportional to 447,639.98, 617,724.14 and 243,686.63 is: 336,277.18
Step by Step Solution
- Step 1: Write the proportion equation
447,639.98 : 617,724.14 = 243,686.63 : x - Step 2: Convert to fraction form
447,639.98/617,724.14 = 243,686.63/x - Step 3: Cross multiply
447,639.98x = 617,724.14 × 243,686.63 - Step 4: Simplify right side
447,639.98x = 150,531,109,639.19 - Step 5: Solve for x
x = 150,531,109,639.19/447,639.98 - Step 6: Final answer
x = 336,277.18
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1.5x scale
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.