Finding the Fourth Proportional to 717,386.08, 990,037.54 and 395,096.09
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Solution
The fourth proportional to 717,386.08, 990,037.54 and 395,096.09 is: 545,257.25
Step by Step Solution
- Step 1: Write the proportion equation
717,386.08 : 990,037.54 = 395,096.09 : x - Step 2: Convert to fraction form
717,386.08/990,037.54 = 395,096.09/x - Step 3: Cross multiply
717,386.08x = 990,037.54 × 395,096.09 - Step 4: Simplify right side
717,386.08x = 391,159,961,007.22 - Step 5: Solve for x
x = 391,159,961,007.22/717,386.08 - Step 6: Final answer
x = 545,257.25
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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.