Finding the Fourth Proportional to 1,113,957.21, 1,537,148.76 and 630,438.17
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Solution
The fourth proportional to 1,113,957.21, 1,537,148.76 and 630,438.17 is: 869,941.18
Step by Step Solution
- Step 1: Write the proportion equation
1,113,957.21 : 1,537,148.76 = 630,438.17 : x - Step 2: Convert to fraction form
1,113,957.21/1,537,148.76 = 630,438.17/x - Step 3: Cross multiply
1,113,957.21x = 1,537,148.76 × 630,438.17 - Step 4: Simplify right side
1,113,957.21x = 969,077,253,414.96 - Step 5: Solve for x
x = 969,077,253,414.96/1,113,957.21 - Step 6: Final answer
x = 869,941.18
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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.