Finding the Fourth Proportional to 4,920,862.80, 7,381,294.20 and 4,389,421.80
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Solution
The fourth proportional to 4,920,862.80, 7,381,294.20 and 4,389,421.80 is: 6,584,132.70
Step by Step Solution
- Step 1: Write the proportion equation
4,920,862.80 : 7,381,294.20 = 4,389,421.80 : x - Step 2: Convert to fraction form
4,920,862.80/7,381,294.20 = 4,389,421.80/x - Step 3: Cross multiply
4,920,862.80x = 7,381,294.20 × 4,389,421.80 - Step 4: Simplify right side
4,920,862.80x = 32,399,613,673,693.56 - Step 5: Solve for x
x = 32,399,613,673,693.56/4,920,862.80 - Step 6: Final answer
x = 6,584,132.70
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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.