Finding the Fourth Proportional to 719,109.84, 992,364.84 and 396,822.80
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Solution
The fourth proportional to 719,109.84, 992,364.84 and 396,822.80 is: 547,611.75
Step by Step Solution
- Step 1: Write the proportion equation
719,109.84 : 992,364.84 = 396,822.80 : x - Step 2: Convert to fraction form
719,109.84/992,364.84 = 396,822.80/x - Step 3: Cross multiply
719,109.84x = 992,364.84 × 396,822.80 - Step 4: Simplify right side
719,109.84x = 393,792,994,430.35 - Step 5: Solve for x
x = 393,792,994,430.35/719,109.84 - Step 6: Final answer
x = 547,611.75
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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.