Finding the Fourth Proportional to 1,540,505.70, 2,310,758.55 and 687,575.70
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Solution
The fourth proportional to 1,540,505.70, 2,310,758.55 and 687,575.70 is: 1,031,363.55
Step by Step Solution
- Step 1: Write the proportion equation
1,540,505.70 : 2,310,758.55 = 687,575.70 : x - Step 2: Convert to fraction form
1,540,505.70/2,310,758.55 = 687,575.70/x - Step 3: Cross multiply
1,540,505.70x = 2,310,758.55 × 687,575.70 - Step 4: Simplify right side
1,540,505.70x = 1,588,821,427,547.24 - Step 5: Solve for x
x = 1,588,821,427,547.24/1,540,505.70 - Step 6: Final answer
x = 1,031,363.55
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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.