Finding the Fourth Proportional to 879,369.30, 1,319,491.35 and 346,907.70
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Solution
The fourth proportional to 879,369.30, 1,319,491.35 and 346,907.70 is: 520,534.10
Step by Step Solution
- Step 1: Write the proportion equation
879,369.30 : 1,319,491.35 = 346,907.70 : x - Step 2: Convert to fraction form
879,369.30/1,319,491.35 = 346,907.70/x - Step 3: Cross multiply
879,369.30x = 1,319,491.35 × 346,907.70 - Step 4: Simplify right side
879,369.30x = 457,741,709,398.40 - Step 5: Solve for x
x = 457,741,709,398.40/879,369.30 - Step 6: Final answer
x = 520,534.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.