Finding the Fourth Proportional to 628,879.68, 943,125.12 and 208,068.48
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Solution
The fourth proportional to 628,879.68, 943,125.12 and 208,068.48 is: 312,038.40
Step by Step Solution
- Step 1: Write the proportion equation
628,879.68 : 943,125.12 = 208,068.48 : x - Step 2: Convert to fraction form
628,879.68/943,125.12 = 208,068.48/x - Step 3: Cross multiply
628,879.68x = 943,125.12 × 208,068.48 - Step 4: Simplify right side
628,879.68x = 196,234,610,168.22 - Step 5: Solve for x
x = 196,234,610,168.22/628,879.68 - Step 6: Final answer
x = 312,038.40
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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.