Finding the Fourth Proportional to 578,707.71, 798,607.96 and 320,583.84
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Solution
The fourth proportional to 578,707.71, 798,607.96 and 320,583.84 is: 442,400.89
Step by Step Solution
- Step 1: Write the proportion equation
578,707.71 : 798,607.96 = 320,583.84 : x - Step 2: Convert to fraction form
578,707.71/798,607.96 = 320,583.84/x - Step 3: Cross multiply
578,707.71x = 798,607.96 × 320,583.84 - Step 4: Simplify right side
578,707.71x = 256,020,802,675.13 - Step 5: Solve for x
x = 256,020,802,675.13/578,707.71 - Step 6: Final answer
x = 442,400.89
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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.