Finding the Fourth Proportional to 5,280,220.51, 7,920,263.85 and 1,685,941.90
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Solution
The fourth proportional to 5,280,220.51, 7,920,263.85 and 1,685,941.90 is: 2,528,891.48
Step by Step Solution
- Step 1: Write the proportion equation
5,280,220.51 : 7,920,263.85 = 1,685,941.90 : x - Step 2: Convert to fraction form
5,280,220.51/7,920,263.85 = 1,685,941.90/x - Step 3: Cross multiply
5,280,220.51x = 7,920,263.85 × 1,685,941.90 - Step 4: Simplify right side
5,280,220.51x = 13,353,104,683,770.31 - Step 5: Solve for x
x = 13,353,104,683,770.31/5,280,220.51 - Step 6: Final answer
x = 2,528,891.48
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1.5x scale
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.