Finding the Fourth Proportional to 413,695.56, 571,117.86 and 278,440.68
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Solution
The fourth proportional to 413,695.56, 571,117.86 and 278,440.68 is: 384,394.86
Step by Step Solution
- Step 1: Write the proportion equation
413,695.56 : 571,117.86 = 278,440.68 : x - Step 2: Convert to fraction form
413,695.56/571,117.86 = 278,440.68/x - Step 3: Cross multiply
413,695.56x = 571,117.86 × 278,440.68 - Step 4: Simplify right side
413,695.56x = 159,022,445,298.55 - Step 5: Solve for x
x = 159,022,445,298.55/413,695.56 - Step 6: Final answer
x = 384,394.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.