Finding the Fourth Proportional to 1,020,860.76, 1,531,174.39 and 272,965.08
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Solution
The fourth proportional to 1,020,860.76, 1,531,174.39 and 272,965.08 is: 409,416.40
Step by Step Solution
- Step 1: Write the proportion equation
1,020,860.76 : 1,531,174.39 = 272,965.08 : x - Step 2: Convert to fraction form
1,020,860.76/1,531,174.39 = 272,965.08/x - Step 3: Cross multiply
1,020,860.76x = 1,531,174.39 × 272,965.08 - Step 4: Simplify right side
1,020,860.76x = 417,957,139,860.30 - Step 5: Solve for x
x = 417,957,139,860.30/1,020,860.76 - Step 6: Final answer
x = 409,416.40
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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.