Finding the Fourth Proportional to 930,137.60, 1,395,400.80 and 299,115.20
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Solution
The fourth proportional to 930,137.60, 1,395,400.80 and 299,115.20 is: 448,735.32
Step by Step Solution
- Step 1: Write the proportion equation
930,137.60 : 1,395,400.80 = 299,115.20 : x - Step 2: Convert to fraction form
930,137.60/1,395,400.80 = 299,115.20/x - Step 3: Cross multiply
930,137.60x = 1,395,400.80 × 299,115.20 - Step 4: Simplify right side
930,137.60x = 417,385,589,372.16 - Step 5: Solve for x
x = 417,385,589,372.16/930,137.60 - Step 6: Final answer
x = 448,735.32
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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.