Finding the Fourth Proportional to 615,191.44, 921,490.08 and 390,433.36
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Solution
The fourth proportional to 615,191.44, 921,490.08 and 390,433.36 is: 584,826.84
Step by Step Solution
- Step 1: Write the proportion equation
615,191.44 : 921,490.08 = 390,433.36 : x - Step 2: Convert to fraction form
615,191.44/921,490.08 = 390,433.36/x - Step 3: Cross multiply
615,191.44x = 921,490.08 × 390,433.36 - Step 4: Simplify right side
615,191.44x = 359,780,468,141.07 - Step 5: Solve for x
x = 359,780,468,141.07/615,191.44 - Step 6: Final answer
x = 584,826.84
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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.