Finding the Fourth Proportional to 875,262.12, 1,312,368.24 and 401,353.80
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Solution
The fourth proportional to 875,262.12, 1,312,368.24 and 401,353.80 is: 601,789.99
Step by Step Solution
- Step 1: Write the proportion equation
875,262.12 : 1,312,368.24 = 401,353.80 : x - Step 2: Convert to fraction form
875,262.12/1,312,368.24 = 401,353.80/x - Step 3: Cross multiply
875,262.12x = 1,312,368.24 × 401,353.80 - Step 4: Simplify right side
875,262.12x = 526,723,980,123.31 - Step 5: Solve for x
x = 526,723,980,123.31/875,262.12 - Step 6: Final answer
x = 601,789.99
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1.5x scale
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.