Finding the Fourth Proportional to 750,640.13, 1,123,135.11 and 526,438.20
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Solution
The fourth proportional to 750,640.13, 1,123,135.11 and 526,438.20 is: 787,676.02
Step by Step Solution
- Step 1: Write the proportion equation
750,640.13 : 1,123,135.11 = 526,438.20 : x - Step 2: Convert to fraction form
750,640.13/1,123,135.11 = 526,438.20/x - Step 3: Cross multiply
750,640.13x = 1,123,135.11 × 526,438.20 - Step 4: Simplify right side
750,640.13x = 591,261,225,665.20 - Step 5: Solve for x
x = 591,261,225,665.20/750,640.13 - Step 6: Final answer
x = 787,676.02
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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.