Finding the Fourth Proportional to 1,677,475.80, 2,515,254.24 and 778,455.12
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Solution
The fourth proportional to 1,677,475.80, 2,515,254.24 and 778,455.12 is: 1,167,237.43
Step by Step Solution
- Step 1: Write the proportion equation
1,677,475.80 : 2,515,254.24 = 778,455.12 : x - Step 2: Convert to fraction form
1,677,475.80/2,515,254.24 = 778,455.12/x - Step 3: Cross multiply
1,677,475.80x = 2,515,254.24 × 778,455.12 - Step 4: Simplify right side
1,677,475.80x = 1,958,012,541,229.71 - Step 5: Solve for x
x = 1,958,012,541,229.71/1,677,475.80 - Step 6: Final answer
x = 1,167,237.43
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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.