Finding the Fourth Proportional to 631,508.42, 871,436.13 and 344,967.68
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Solution
The fourth proportional to 631,508.42, 871,436.13 and 344,967.68 is: 476,030.55
Step by Step Solution
- Step 1: Write the proportion equation
631,508.42 : 871,436.13 = 344,967.68 : x - Step 2: Convert to fraction form
631,508.42/871,436.13 = 344,967.68/x - Step 3: Cross multiply
631,508.42x = 871,436.13 × 344,967.68 - Step 4: Simplify right side
631,508.42x = 300,617,300,034.28 - Step 5: Solve for x
x = 300,617,300,034.28/631,508.42 - Step 6: Final answer
x = 476,030.55
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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.