Finding the Fourth Proportional to 879,621.80, 1,319,432.70 and 346,965.80
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Solution
The fourth proportional to 879,621.80, 1,319,432.70 and 346,965.80 is: 520,448.70
Step by Step Solution
- Step 1: Write the proportion equation
879,621.80 : 1,319,432.70 = 346,965.80 : x - Step 2: Convert to fraction form
879,621.80/1,319,432.70 = 346,965.80/x - Step 3: Cross multiply
879,621.80x = 1,319,432.70 × 346,965.80 - Step 4: Simplify right side
879,621.80x = 457,798,022,301.66 - Step 5: Solve for x
x = 457,798,022,301.66/879,621.80 - Step 6: Final answer
x = 520,448.70
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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.