Finding the Fourth Proportional to 921,146.19, 1,271,190.29 and 507,697.71
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Solution
The fourth proportional to 921,146.19, 1,271,190.29 and 507,697.71 is: 700,627.55
Step by Step Solution
- Step 1: Write the proportion equation
921,146.19 : 1,271,190.29 = 507,697.71 : x - Step 2: Convert to fraction form
921,146.19/1,271,190.29 = 507,697.71/x - Step 3: Cross multiply
921,146.19x = 1,271,190.29 × 507,697.71 - Step 4: Simplify right side
921,146.19x = 645,380,399,207.24 - Step 5: Solve for x
x = 645,380,399,207.24/921,146.19 - Step 6: Final answer
x = 700,627.55
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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.