Finding the Fourth Proportional to 1,415,975.40, 2,126,420.70 and 752,423.40
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Solution
The fourth proportional to 1,415,975.40, 2,126,420.70 and 752,423.40 is: 1,129,941.02
Step by Step Solution
- Step 1: Write the proportion equation
1,415,975.40 : 2,126,420.70 = 752,423.40 : x - Step 2: Convert to fraction form
1,415,975.40/2,126,420.70 = 752,423.40/x - Step 3: Cross multiply
1,415,975.40x = 2,126,420.70 × 752,423.40 - Step 4: Simplify right side
1,415,975.40x = 1,599,968,692,924.38 - Step 5: Solve for x
x = 1,599,968,692,924.38/1,415,975.40 - Step 6: Final answer
x = 1,129,941.02
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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.