Finding the Fourth Proportional to 877,509.09, 1,316,460.87 and 278,489.79
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Solution
The fourth proportional to 877,509.09, 1,316,460.87 and 278,489.79 is: 417,797.28
Step by Step Solution
- Step 1: Write the proportion equation
877,509.09 : 1,316,460.87 = 278,489.79 : x - Step 2: Convert to fraction form
877,509.09/1,316,460.87 = 278,489.79/x - Step 3: Cross multiply
877,509.09x = 1,316,460.87 × 278,489.79 - Step 4: Simplify right side
877,509.09x = 366,620,911,229.52 - Step 5: Solve for x
x = 366,620,911,229.52/877,509.09 - Step 6: Final answer
x = 417,797.28
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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.