Finding the Fourth Proportional to 1,487,645.70, 2,231,468.55 and 476,765.70
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Solution
The fourth proportional to 1,487,645.70, 2,231,468.55 and 476,765.70 is: 715,148.55
Step by Step Solution
- Step 1: Write the proportion equation
1,487,645.70 : 2,231,468.55 = 476,765.70 : x - Step 2: Convert to fraction form
1,487,645.70/2,231,468.55 = 476,765.70/x - Step 3: Cross multiply
1,487,645.70x = 2,231,468.55 × 476,765.70 - Step 4: Simplify right side
1,487,645.70x = 1,063,887,665,268.74 - Step 5: Solve for x
x = 1,063,887,665,268.74/1,487,645.70 - Step 6: Final answer
x = 715,148.55
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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.