Finding the Fourth Proportional to 728,547.62, 1,005,402.24 and 401,873.13
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Solution
The fourth proportional to 728,547.62, 1,005,402.24 and 401,873.13 is: 554,588.52
Step by Step Solution
- Step 1: Write the proportion equation
728,547.62 : 1,005,402.24 = 401,873.13 : x - Step 2: Convert to fraction form
728,547.62/1,005,402.24 = 401,873.13/x - Step 3: Cross multiply
728,547.62x = 1,005,402.24 × 401,873.13 - Step 4: Simplify right side
728,547.62x = 404,044,145,097.81 - Step 5: Solve for x
x = 404,044,145,097.81/728,547.62 - Step 6: Final answer
x = 554,588.52
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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.