Finding the Fourth Proportional to 1,189,060.18, 1,783,585.51 and 430,724.18
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Solution
The fourth proportional to 1,189,060.18, 1,783,585.51 and 430,724.18 is: 646,084.55
Step by Step Solution
- Step 1: Write the proportion equation
1,189,060.18 : 1,783,585.51 = 430,724.18 : x - Step 2: Convert to fraction form
1,189,060.18/1,783,585.51 = 430,724.18/x - Step 3: Cross multiply
1,189,060.18x = 1,783,585.51 × 430,724.18 - Step 4: Simplify right side
1,189,060.18x = 768,233,406,254.63 - Step 5: Solve for x
x = 768,233,406,254.63/1,189,060.18 - Step 6: Final answer
x = 646,084.55
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1.5x scale
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.