Finding the Fourth Proportional to 879,078.88, 1,212,925.36 and 593,129.44
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Solution
The fourth proportional to 879,078.88, 1,212,925.36 and 593,129.44 is: 818,381.33
Step by Step Solution
- Step 1: Write the proportion equation
879,078.88 : 1,212,925.36 = 593,129.44 : x - Step 2: Convert to fraction form
879,078.88/1,212,925.36 = 593,129.44/x - Step 3: Cross multiply
879,078.88x = 1,212,925.36 × 593,129.44 - Step 4: Simplify right side
879,078.88x = 719,421,739,538.60 - Step 5: Solve for x
x = 719,421,739,538.60/879,078.88 - Step 6: Final answer
x = 818,381.33
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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.