Finding the Fourth Proportional to 780,426.53, 1,077,162.35 and 474,438.09
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Solution
The fourth proportional to 780,426.53, 1,077,162.35 and 474,438.09 is: 654,830.19
Step by Step Solution
- Step 1: Write the proportion equation
780,426.53 : 1,077,162.35 = 474,438.09 : x - Step 2: Convert to fraction form
780,426.53/1,077,162.35 = 474,438.09/x - Step 3: Cross multiply
780,426.53x = 1,077,162.35 × 474,438.09 - Step 4: Simplify right side
780,426.53x = 511,046,852,289.79 - Step 5: Solve for x
x = 511,046,852,289.79/780,426.53 - Step 6: Final answer
x = 654,830.19
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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.