Finding the Fourth Proportional to 718,124.52, 990,966.76 and 395,816.88
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Solution
The fourth proportional to 718,124.52, 990,966.76 and 395,816.88 is: 546,202.45
Step by Step Solution
- Step 1: Write the proportion equation
718,124.52 : 990,966.76 = 395,816.88 : x - Step 2: Convert to fraction form
718,124.52/990,966.76 = 395,816.88/x - Step 3: Cross multiply
718,124.52x = 990,966.76 × 395,816.88 - Step 4: Simplify right side
718,124.52x = 392,241,371,126.91 - Step 5: Solve for x
x = 392,241,371,126.91/718,124.52 - Step 6: Final answer
x = 546,202.45
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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.