Finding the Fourth Proportional to 1,538,420.70, 2,307,631.05 and 527,407.05
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Solution
The fourth proportional to 1,538,420.70, 2,307,631.05 and 527,407.05 is: 791,110.58
Step by Step Solution
- Step 1: Write the proportion equation
1,538,420.70 : 2,307,631.05 = 527,407.05 : x - Step 2: Convert to fraction form
1,538,420.70/2,307,631.05 = 527,407.05/x - Step 3: Cross multiply
1,538,420.70x = 2,307,631.05 × 527,407.05 - Step 4: Simplify right side
1,538,420.70x = 1,217,060,884,568.90 - Step 5: Solve for x
x = 1,217,060,884,568.90/1,538,420.70 - Step 6: Final answer
x = 791,110.58
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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.