Finding the Fourth Proportional to 824,962.28, 1,138,479.24 and 462,392.84
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Solution
The fourth proportional to 824,962.28, 1,138,479.24 and 462,392.84 is: 638,119.66
Step by Step Solution
- Step 1: Write the proportion equation
824,962.28 : 1,138,479.24 = 462,392.84 : x - Step 2: Convert to fraction form
824,962.28/1,138,479.24 = 462,392.84/x - Step 3: Cross multiply
824,962.28x = 1,138,479.24 × 462,392.84 - Step 4: Simplify right side
824,962.28x = 526,424,649,064.64 - Step 5: Solve for x
x = 526,424,649,064.64/824,962.28 - Step 6: Final answer
x = 638,119.66
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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.