Finding the Fourth Proportional to 1,778,581.65, 2,667,863.55 and 430,744.23
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Solution
The fourth proportional to 1,778,581.65, 2,667,863.55 and 430,744.23 is: 646,114.18
Step by Step Solution
- Step 1: Write the proportion equation
1,778,581.65 : 2,667,863.55 = 430,744.23 : x - Step 2: Convert to fraction form
1,778,581.65/2,667,863.55 = 430,744.23/x - Step 3: Cross multiply
1,778,581.65x = 2,667,863.55 × 430,744.23 - Step 4: Simplify right side
1,778,581.65x = 1,149,166,830,589.82 - Step 5: Solve for x
x = 1,149,166,830,589.82/1,778,581.65 - Step 6: Final answer
x = 646,114.18
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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.