Finding the Fourth Proportional to 719,260.62, 992,574.77 and 396,970.71
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Solution
The fourth proportional to 719,260.62, 992,574.77 and 396,970.71 is: 547,816.88
Step by Step Solution
- Step 1: Write the proportion equation
719,260.62 : 992,574.77 = 396,970.71 : x - Step 2: Convert to fraction form
719,260.62/992,574.77 = 396,970.71/x - Step 3: Cross multiply
719,260.62x = 992,574.77 × 396,970.71 - Step 4: Simplify right side
719,260.62x = 394,023,111,174.99 - Step 5: Solve for x
x = 394,023,111,174.99/719,260.62 - Step 6: Final answer
x = 547,816.88
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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.