Finding the Fourth Proportional to 719,348.88, 992,695.98 and 397,058.94
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Solution
The fourth proportional to 719,348.88, 992,695.98 and 397,058.94 is: 547,938.32
Step by Step Solution
- Step 1: Write the proportion equation
719,348.88 : 992,695.98 = 397,058.94 : x - Step 2: Convert to fraction form
719,348.88/992,695.98 = 397,058.94/x - Step 3: Cross multiply
719,348.88x = 992,695.98 × 397,058.94 - Step 4: Simplify right side
719,348.88x = 394,158,813,561.06 - Step 5: Solve for x
x = 394,158,813,561.06/719,348.88 - Step 6: Final answer
x = 547,938.32
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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.