Finding the Fourth Proportional to 1,679,658.90, 2,519,488.35 and 921,207.30
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Solution
The fourth proportional to 1,679,658.90, 2,519,488.35 and 921,207.30 is: 1,381,810.95
Step by Step Solution
- Step 1: Write the proportion equation
1,679,658.90 : 2,519,488.35 = 921,207.30 : x - Step 2: Convert to fraction form
1,679,658.90/2,519,488.35 = 921,207.30/x - Step 3: Cross multiply
1,679,658.90x = 2,519,488.35 × 921,207.30 - Step 4: Simplify right side
1,679,658.90x = 2,320,971,060,284.96 - Step 5: Solve for x
x = 2,320,971,060,284.96/1,679,658.90 - Step 6: Final answer
x = 1,381,810.95
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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.