Finding the Fourth Proportional to 1,316,905.48, 1,975,343.82 and 319,633.48
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Solution
The fourth proportional to 1,316,905.48, 1,975,343.82 and 319,633.48 is: 479,446.72
Step by Step Solution
- Step 1: Write the proportion equation
1,316,905.48 : 1,975,343.82 = 319,633.48 : x - Step 2: Convert to fraction form
1,316,905.48/1,975,343.82 = 319,633.48/x - Step 3: Cross multiply
1,316,905.48x = 1,975,343.82 × 319,633.48 - Step 4: Simplify right side
1,316,905.48x = 631,386,019,383.09 - Step 5: Solve for x
x = 631,386,019,383.09/1,316,905.48 - Step 6: Final answer
x = 479,446.72
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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.