Finding the Fourth Proportional to 886,407.12, 1,329,610.68 and 413,423.28
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Solution
The fourth proportional to 886,407.12, 1,329,610.68 and 413,423.28 is: 620,134.92
Step by Step Solution
- Step 1: Write the proportion equation
886,407.12 : 1,329,610.68 = 413,423.28 : x - Step 2: Convert to fraction form
886,407.12/1,329,610.68 = 413,423.28/x - Step 3: Cross multiply
886,407.12x = 1,329,610.68 × 413,423.28 - Step 4: Simplify right side
886,407.12x = 549,692,008,448.63 - Step 5: Solve for x
x = 549,692,008,448.63/886,407.12 - Step 6: Final answer
x = 620,134.92
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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.