Finding the Fourth Proportional to 719,322.76, 992,594.58 and 397,012.12
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Solution
The fourth proportional to 719,322.76, 992,594.58 and 397,012.12 is: 547,837.63
Step by Step Solution
- Step 1: Write the proportion equation
719,322.76 : 992,594.58 = 397,012.12 : x - Step 2: Convert to fraction form
719,322.76/992,594.58 = 397,012.12/x - Step 3: Cross multiply
719,322.76x = 992,594.58 × 397,012.12 - Step 4: Simplify right side
719,322.76x = 394,072,078,506.31 - Step 5: Solve for x
x = 394,072,078,506.31/719,322.76 - Step 6: Final answer
x = 547,837.63
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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.