Finding the Fourth Proportional to 879,049.68, 1,213,089.24 and 476,641.68
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Solution
The fourth proportional to 879,049.68, 1,213,089.24 and 476,641.68 is: 657,765.89
Step by Step Solution
- Step 1: Write the proportion equation
879,049.68 : 1,213,089.24 = 476,641.68 : x - Step 2: Convert to fraction form
879,049.68/1,213,089.24 = 476,641.68/x - Step 3: Cross multiply
879,049.68x = 1,213,089.24 × 476,641.68 - Step 4: Simplify right side
879,049.68x = 578,208,893,343.52 - Step 5: Solve for x
x = 578,208,893,343.52/879,049.68 - Step 6: Final answer
x = 657,765.89
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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.