Finding the Fourth Proportional to 953,638.40, 1,430,235.86 and 354,881.54
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Solution
The fourth proportional to 953,638.40, 1,430,235.86 and 354,881.54 is: 532,239.79
Step by Step Solution
- Step 1: Write the proportion equation
953,638.40 : 1,430,235.86 = 354,881.54 : x - Step 2: Convert to fraction form
953,638.40/1,430,235.86 = 354,881.54/x - Step 3: Cross multiply
953,638.40x = 1,430,235.86 × 354,881.54 - Step 4: Simplify right side
953,638.40x = 507,564,306,361.21 - Step 5: Solve for x
x = 507,564,306,361.21/953,638.40 - Step 6: Final answer
x = 532,239.79
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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.