Finding the Fourth Proportional to 859,565.76, 1,289,391.47 and 327,128.06
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Solution
The fourth proportional to 859,565.76, 1,289,391.47 and 327,128.06 is: 490,708.39
Step by Step Solution
- Step 1: Write the proportion equation
859,565.76 : 1,289,391.47 = 327,128.06 : x - Step 2: Convert to fraction form
859,565.76/1,289,391.47 = 327,128.06/x - Step 3: Cross multiply
859,565.76x = 1,289,391.47 × 327,128.06 - Step 4: Simplify right side
859,565.76x = 421,796,130,161.65 - Step 5: Solve for x
x = 421,796,130,161.65/859,565.76 - Step 6: Final answer
x = 490,708.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.