Finding the Fourth Proportional to 811,248.51, 1,119,867.66 and 505,475.97
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Solution
The fourth proportional to 811,248.51, 1,119,867.66 and 505,475.97 is: 697,771.63
Step by Step Solution
- Step 1: Write the proportion equation
811,248.51 : 1,119,867.66 = 505,475.97 : x - Step 2: Convert to fraction form
811,248.51/1,119,867.66 = 505,475.97/x - Step 3: Cross multiply
811,248.51x = 1,119,867.66 × 505,475.97 - Step 4: Simplify right side
811,248.51x = 566,066,191,710.13 - Step 5: Solve for x
x = 566,066,191,710.13/811,248.51 - Step 6: Final answer
x = 697,771.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.