Finding the Fourth Proportional to 1,008,670.74, 1,513,230.75 and 440,143.62
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Solution
The fourth proportional to 1,008,670.74, 1,513,230.75 and 440,143.62 is: 660,313.45
Step by Step Solution
- Step 1: Write the proportion equation
1,008,670.74 : 1,513,230.75 = 440,143.62 : x - Step 2: Convert to fraction form
1,008,670.74/1,513,230.75 = 440,143.62/x - Step 3: Cross multiply
1,008,670.74x = 1,513,230.75 × 440,143.62 - Step 4: Simplify right side
1,008,670.74x = 666,038,860,200.32 - Step 5: Solve for x
x = 666,038,860,200.32/1,008,670.74 - Step 6: Final answer
x = 660,313.45
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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.