Finding the Fourth Proportional to 719,378.07, 992,741.58 and 397,088.08
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Solution
The fourth proportional to 719,378.07, 992,741.58 and 397,088.08 is: 547,981.46
Step by Step Solution
- Step 1: Write the proportion equation
719,378.07 : 992,741.58 = 397,088.08 : x - Step 2: Convert to fraction form
719,378.07/992,741.58 = 397,088.08/x - Step 3: Cross multiply
719,378.07x = 992,741.58 × 397,088.08 - Step 4: Simplify right side
719,378.07x = 394,205,844,215.59 - Step 5: Solve for x
x = 394,205,844,215.59/719,378.07 - Step 6: Final answer
x = 547,981.46
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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.