Finding the Fourth Proportional to 811,462.37, 1,216,402.58 and 338,283.05
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Solution
The fourth proportional to 811,462.37, 1,216,402.58 and 338,283.05 is: 507,094.83
Step by Step Solution
- Step 1: Write the proportion equation
811,462.37 : 1,216,402.58 = 338,283.05 : x - Step 2: Convert to fraction form
811,462.37/1,216,402.58 = 338,283.05/x - Step 3: Cross multiply
811,462.37x = 1,216,402.58 × 338,283.05 - Step 4: Simplify right side
811,462.37x = 411,488,374,790.27 - Step 5: Solve for x
x = 411,488,374,790.27/811,462.37 - Step 6: Final answer
x = 507,094.83
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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.