Finding the Fourth Proportional to 717,962.29, 990,794.51 and 395,684.08
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Solution
The fourth proportional to 717,962.29, 990,794.51 and 395,684.08 is: 546,047.64
Step by Step Solution
- Step 1: Write the proportion equation
717,962.29 : 990,794.51 = 395,684.08 : x - Step 2: Convert to fraction form
717,962.29/990,794.51 = 395,684.08/x - Step 3: Cross multiply
717,962.29x = 990,794.51 × 395,684.08 - Step 4: Simplify right side
717,962.29x = 392,041,612,179.98 - Step 5: Solve for x
x = 392,041,612,179.98/717,962.29 - Step 6: Final answer
x = 546,047.64
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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.