Finding the Fourth Proportional to 750,928.99, 1,036,283.06 and 406,768.63
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Solution
The fourth proportional to 750,928.99, 1,036,283.06 and 406,768.63 is: 561,341.28
Step by Step Solution
- Step 1: Write the proportion equation
750,928.99 : 1,036,283.06 = 406,768.63 : x - Step 2: Convert to fraction form
750,928.99/1,036,283.06 = 406,768.63/x - Step 3: Cross multiply
750,928.99x = 1,036,283.06 × 406,768.63 - Step 4: Simplify right side
750,928.99x = 421,527,440,608.41 - Step 5: Solve for x
x = 421,527,440,608.41/750,928.99 - Step 6: Final answer
x = 561,341.28
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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.