Finding the Fourth Proportional to 631,357.47, 871,560.12 and 402,228.96
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Solution
The fourth proportional to 631,357.47, 871,560.12 and 402,228.96 is: 555,258.69
Step by Step Solution
- Step 1: Write the proportion equation
631,357.47 : 871,560.12 = 402,228.96 : x - Step 2: Convert to fraction form
631,357.47/871,560.12 = 402,228.96/x - Step 3: Cross multiply
631,357.47x = 871,560.12 × 402,228.96 - Step 4: Simplify right side
631,357.47x = 350,566,720,645.08 - Step 5: Solve for x
x = 350,566,720,645.08/631,357.47 - Step 6: Final answer
x = 555,258.69
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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.