Finding the Fourth Proportional to 874,734.76, 1,312,516.86 and 520,448.68
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Solution
The fourth proportional to 874,734.76, 1,312,516.86 and 520,448.68 is: 780,919.77
Step by Step Solution
- Step 1: Write the proportion equation
874,734.76 : 1,312,516.86 = 520,448.68 : x - Step 2: Convert to fraction form
874,734.76/1,312,516.86 = 520,448.68/x - Step 3: Cross multiply
874,734.76x = 1,312,516.86 × 520,448.68 - Step 4: Simplify right side
874,734.76x = 683,097,667,264.75 - Step 5: Solve for x
x = 683,097,667,264.75/874,734.76 - Step 6: Final answer
x = 780,919.77
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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.