Finding the Fourth Proportional to 817,766.46, 1,128,517.83 and 455,182.62
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Solution
The fourth proportional to 817,766.46, 1,128,517.83 and 455,182.62 is: 628,152.08
Step by Step Solution
- Step 1: Write the proportion equation
817,766.46 : 1,128,517.83 = 455,182.62 : x - Step 2: Convert to fraction form
817,766.46/1,128,517.83 = 455,182.62/x - Step 3: Cross multiply
817,766.46x = 1,128,517.83 × 455,182.62 - Step 4: Simplify right side
817,766.46x = 513,681,702,576.12 - Step 5: Solve for x
x = 513,681,702,576.12/817,766.46 - Step 6: Final answer
x = 628,152.08
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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.