Finding the Fourth Proportional to 1,488,147.68, 2,232,216.55 and 408,661.18
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Solution
The fourth proportional to 1,488,147.68, 2,232,216.55 and 408,661.18 is: 612,990.40
Step by Step Solution
- Step 1: Write the proportion equation
1,488,147.68 : 2,232,216.55 = 408,661.18 : x - Step 2: Convert to fraction form
1,488,147.68/2,232,216.55 = 408,661.18/x - Step 3: Cross multiply
1,488,147.68x = 2,232,216.55 × 408,661.18 - Step 4: Simplify right side
1,488,147.68x = 912,220,237,349.86 - Step 5: Solve for x
x = 912,220,237,349.86/1,488,147.68 - Step 6: Final answer
x = 612,990.40
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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.