Finding the Fourth Proportional to 879,117.68, 1,213,183.08 and 476,709.68
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Solution
The fourth proportional to 879,117.68, 1,213,183.08 and 476,709.68 is: 657,859.73
Step by Step Solution
- Step 1: Write the proportion equation
879,117.68 : 1,213,183.08 = 476,709.68 : x - Step 2: Convert to fraction form
879,117.68/1,213,183.08 = 476,709.68/x - Step 3: Cross multiply
879,117.68x = 1,213,183.08 × 476,709.68 - Step 4: Simplify right side
879,117.68x = 578,336,117,848.22 - Step 5: Solve for x
x = 578,336,117,848.22/879,117.68 - Step 6: Final answer
x = 657,859.73
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1.5x scale
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.