Finding the Fourth Proportional to 1,860,064.74, 2,790,129.51 and 512,220.42
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Solution
The fourth proportional to 1,860,064.74, 2,790,129.51 and 512,220.42 is: 768,339.55
Step by Step Solution
- Step 1: Write the proportion equation
1,860,064.74 : 2,790,129.51 = 512,220.42 : x - Step 2: Convert to fraction form
1,860,064.74/2,790,129.51 = 512,220.42/x - Step 3: Cross multiply
1,860,064.74x = 2,790,129.51 × 512,220.42 - Step 4: Simplify right side
1,860,064.74x = 1,429,161,309,466.59 - Step 5: Solve for x
x = 1,429,161,309,466.59/1,860,064.74 - Step 6: Final answer
x = 768,339.55
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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.