Finding the Fourth Proportional to 613,090.71, 845,585.91 and 398,299.98
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Solution
The fourth proportional to 613,090.71, 845,585.91 and 398,299.98 is: 549,342.61
Step by Step Solution
- Step 1: Write the proportion equation
613,090.71 : 845,585.91 = 398,299.98 : x - Step 2: Convert to fraction form
613,090.71/845,585.91 = 398,299.98/x - Step 3: Cross multiply
613,090.71x = 845,585.91 × 398,299.98 - Step 4: Simplify right side
613,090.71x = 336,796,851,041.28 - Step 5: Solve for x
x = 336,796,851,041.28/613,090.71 - Step 6: Final answer
x = 549,342.61
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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.