Finding the Fourth Proportional to 631,507.42, 871,434.75 and 344,966.68
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Solution
The fourth proportional to 631,507.42, 871,434.75 and 344,966.68 is: 476,029.17
Step by Step Solution
- Step 1: Write the proportion equation
631,507.42 : 871,434.75 = 344,966.68 : x - Step 2: Convert to fraction form
631,507.42/871,434.75 = 344,966.68/x - Step 3: Cross multiply
631,507.42x = 871,434.75 × 344,966.68 - Step 4: Simplify right side
631,507.42x = 300,615,952,544.13 - Step 5: Solve for x
x = 300,615,952,544.13/631,507.42 - Step 6: Final answer
x = 476,029.17
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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.