Finding the Fourth Proportional to 783,508.23, 1,081,465.58 and 461,405.18
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Solution
The fourth proportional to 783,508.23, 1,081,465.58 and 461,405.18 is: 636,871.20
Step by Step Solution
- Step 1: Write the proportion equation
783,508.23 : 1,081,465.58 = 461,405.18 : x - Step 2: Convert to fraction form
783,508.23/1,081,465.58 = 461,405.18/x - Step 3: Cross multiply
783,508.23x = 1,081,465.58 × 461,405.18 - Step 4: Simplify right side
783,508.23x = 498,993,824,460.88 - Step 5: Solve for x
x = 498,993,824,460.88/783,508.23 - Step 6: Final answer
x = 636,871.20
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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.