Finding the Fourth Proportional to 719,455.08, 992,821.98 and 397,158.26
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Solution
The fourth proportional to 719,455.08, 992,821.98 and 397,158.26 is: 548,064.02
Step by Step Solution
- Step 1: Write the proportion equation
719,455.08 : 992,821.98 = 397,158.26 : x - Step 2: Convert to fraction form
719,455.08/992,821.98 = 397,158.26/x - Step 3: Cross multiply
719,455.08x = 992,821.98 × 397,158.26 - Step 4: Simplify right side
719,455.08x = 394,307,445,102.45 - Step 5: Solve for x
x = 394,307,445,102.45/719,455.08 - Step 6: Final answer
x = 548,064.02
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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.