Finding the Fourth Proportional to 939,183.64, 1,409,448.08 and 399,818.07
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Solution
The fourth proportional to 939,183.64, 1,409,448.08 and 399,818.07 is: 600,013.45
Step by Step Solution
- Step 1: Write the proportion equation
939,183.64 : 1,409,448.08 = 399,818.07 : x - Step 2: Convert to fraction form
939,183.64/1,409,448.08 = 399,818.07/x - Step 3: Cross multiply
939,183.64x = 1,409,448.08 × 399,818.07 - Step 4: Simplify right side
939,183.64x = 563,522,812,110.35 - Step 5: Solve for x
x = 563,522,812,110.35/939,183.64 - Step 6: Final answer
x = 600,013.45
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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.