Finding the Fourth Proportional to 817,805.70, 1,226,959.56 and 418,726.68
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Solution
The fourth proportional to 817,805.70, 1,226,959.56 and 418,726.68 is: 628,218.54
Step by Step Solution
- Step 1: Write the proportion equation
817,805.70 : 1,226,959.56 = 418,726.68 : x - Step 2: Convert to fraction form
817,805.70/1,226,959.56 = 418,726.68/x - Step 3: Cross multiply
817,805.70x = 1,226,959.56 × 418,726.68 - Step 4: Simplify right side
817,805.70x = 513,760,703,053.06 - Step 5: Solve for x
x = 513,760,703,053.06/817,805.70 - Step 6: Final answer
x = 628,218.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.