Finding the Fourth Proportional to 781,873.16, 1,079,086.68 and 437,840.12
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Solution
The fourth proportional to 781,873.16, 1,079,086.68 and 437,840.12 is: 604,276.33
Step by Step Solution
- Step 1: Write the proportion equation
781,873.16 : 1,079,086.68 = 437,840.12 : x - Step 2: Convert to fraction form
781,873.16/1,079,086.68 = 437,840.12/x - Step 3: Cross multiply
781,873.16x = 1,079,086.68 × 437,840.12 - Step 4: Simplify right side
781,873.16x = 472,467,441,461.60 - Step 5: Solve for x
x = 472,467,441,461.60/781,873.16 - Step 6: Final answer
x = 604,276.33
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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.