Finding the Fourth Proportional to 817,712.14, 1,226,481.92 and 218,733.74
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Solution
The fourth proportional to 817,712.14, 1,226,481.92 and 218,733.74 is: 328,077.53
Step by Step Solution
- Step 1: Write the proportion equation
817,712.14 : 1,226,481.92 = 218,733.74 : x - Step 2: Convert to fraction form
817,712.14/1,226,481.92 = 218,733.74/x - Step 3: Cross multiply
817,712.14x = 1,226,481.92 × 218,733.74 - Step 4: Simplify right side
817,712.14x = 268,272,977,403.98 - Step 5: Solve for x
x = 268,272,977,403.98/817,712.14 - Step 6: Final answer
x = 328,077.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.