Finding the Fourth Proportional to 809,967.12, 1,117,765.35 and 447,390.06
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Solution
The fourth proportional to 809,967.12, 1,117,765.35 and 447,390.06 is: 617,404.21
Step by Step Solution
- Step 1: Write the proportion equation
809,967.12 : 1,117,765.35 = 447,390.06 : x - Step 2: Convert to fraction form
809,967.12/1,117,765.35 = 447,390.06/x - Step 3: Cross multiply
809,967.12x = 1,117,765.35 × 447,390.06 - Step 4: Simplify right side
809,967.12x = 500,077,107,002.42 - Step 5: Solve for x
x = 500,077,107,002.42/809,967.12 - Step 6: Final answer
x = 617,404.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.