Finding the Fourth Proportional to 464,390.63, 640,929.12 and 283,207.66
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Solution
The fourth proportional to 464,390.63, 640,929.12 and 283,207.66 is: 390,869.29
Step by Step Solution
- Step 1: Write the proportion equation
464,390.63 : 640,929.12 = 283,207.66 : x - Step 2: Convert to fraction form
464,390.63/640,929.12 = 283,207.66/x - Step 3: Cross multiply
464,390.63x = 640,929.12 × 283,207.66 - Step 4: Simplify right side
464,390.63x = 181,516,036,301.06 - Step 5: Solve for x
x = 181,516,036,301.06/464,390.63 - Step 6: Final answer
x = 390,869.29
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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.