Finding the Fourth Proportional to 719,118.06, 992,385.84 and 396,837.48
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Solution
The fourth proportional to 719,118.06, 992,385.84 and 396,837.48 is: 547,637.33
Step by Step Solution
- Step 1: Write the proportion equation
719,118.06 : 992,385.84 = 396,837.48 : x - Step 2: Convert to fraction form
719,118.06/992,385.84 = 396,837.48/x - Step 3: Cross multiply
719,118.06x = 992,385.84 × 396,837.48 - Step 4: Simplify right side
719,118.06x = 393,815,895,933.28 - Step 5: Solve for x
x = 393,815,895,933.28/719,118.06 - Step 6: Final answer
x = 547,637.33
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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.