Finding the Fourth Proportional to 516,705.13, 713,077.35 and 287,266.18
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Solution
The fourth proportional to 516,705.13, 713,077.35 and 287,266.18 is: 396,440.82
Step by Step Solution
- Step 1: Write the proportion equation
516,705.13 : 713,077.35 = 287,266.18 : x - Step 2: Convert to fraction form
516,705.13/713,077.35 = 287,266.18/x - Step 3: Cross multiply
516,705.13x = 713,077.35 × 287,266.18 - Step 4: Simplify right side
516,705.13x = 204,843,006,379.02 - Step 5: Solve for x
x = 204,843,006,379.02/516,705.13 - Step 6: Final answer
x = 396,440.82
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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.