Finding the Fourth Proportional to 1,154,740.24, 1,593,543.54 and 645,442.21
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Solution
The fourth proportional to 1,154,740.24, 1,593,543.54 and 645,442.21 is: 890,711.37
Step by Step Solution
- Step 1: Write the proportion equation
1,154,740.24 : 1,593,543.54 = 645,442.21 : x - Step 2: Convert to fraction form
1,154,740.24/1,593,543.54 = 645,442.21/x - Step 3: Cross multiply
1,154,740.24x = 1,593,543.54 × 645,442.21 - Step 4: Simplify right side
1,154,740.24x = 1,028,540,264,188.82 - Step 5: Solve for x
x = 1,028,540,264,188.82/1,154,740.24 - Step 6: Final answer
x = 890,711.37
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1.5x scale
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.