Finding the Fourth Proportional to 1,036,135.47, 1,555,088.90 and 405,492.15
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Solution
The fourth proportional to 1,036,135.47, 1,555,088.90 and 405,492.15 is: 608,584.84
Step by Step Solution
- Step 1: Write the proportion equation
1,036,135.47 : 1,555,088.90 = 405,492.15 : x - Step 2: Convert to fraction form
1,036,135.47/1,555,088.90 = 405,492.15/x - Step 3: Cross multiply
1,036,135.47x = 1,555,088.90 × 405,492.15 - Step 4: Simplify right side
1,036,135.47x = 630,576,341,502.14 - Step 5: Solve for x
x = 630,576,341,502.14/1,036,135.47 - Step 6: Final answer
x = 608,584.84
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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.