Finding the Fourth Proportional to 2,239,128.42, 3,089,880.63 and 1,272,124.50
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Solution
The fourth proportional to 2,239,128.42, 3,089,880.63 and 1,272,124.50 is: 1,755,465.57
Step by Step Solution
- Step 1: Write the proportion equation
2,239,128.42 : 3,089,880.63 = 1,272,124.50 : x - Step 2: Convert to fraction form
2,239,128.42/3,089,880.63 = 1,272,124.50/x - Step 3: Cross multiply
2,239,128.42x = 3,089,880.63 × 1,272,124.50 - Step 4: Simplify right side
2,239,128.42x = 3,930,712,851,498.44 - Step 5: Solve for x
x = 3,930,712,851,498.44/2,239,128.42 - Step 6: Final answer
x = 1,755,465.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.