Finding the Fourth Proportional to 564,687.19, 779,269.65 and 310,054.78
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Solution
The fourth proportional to 564,687.19, 779,269.65 and 310,054.78 is: 427,876.32
Step by Step Solution
- Step 1: Write the proportion equation
564,687.19 : 779,269.65 = 310,054.78 : x - Step 2: Convert to fraction form
564,687.19/779,269.65 = 310,054.78/x - Step 3: Cross multiply
564,687.19x = 779,269.65 × 310,054.78 - Step 4: Simplify right side
564,687.19x = 241,616,275,995.08 - Step 5: Solve for x
x = 241,616,275,995.08/564,687.19 - Step 6: Final answer
x = 427,876.32
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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.