Finding the Fourth Proportional to 1,860,039.12, 2,782,807.14 and 1,630,512.66
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Solution
The fourth proportional to 1,860,039.12, 2,782,807.14 and 1,630,512.66 is: 2,439,412.28
Step by Step Solution
- Step 1: Write the proportion equation
1,860,039.12 : 2,782,807.14 = 1,630,512.66 : x - Step 2: Convert to fraction form
1,860,039.12/2,782,807.14 = 1,630,512.66/x - Step 3: Cross multiply
1,860,039.12x = 2,782,807.14 × 1,630,512.66 - Step 4: Simplify right side
1,860,039.12x = 4,537,402,272,108.39 - Step 5: Solve for x
x = 4,537,402,272,108.39/1,860,039.12 - Step 6: Final answer
x = 2,439,412.28
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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.