Finding the Fourth Proportional to 879,910.20, 1,319,330.70 and 346,816.80
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Solution
The fourth proportional to 879,910.20, 1,319,330.70 and 346,816.80 is: 520,014.49
Step by Step Solution
- Step 1: Write the proportion equation
879,910.20 : 1,319,330.70 = 346,816.80 : x - Step 2: Convert to fraction form
879,910.20/1,319,330.70 = 346,816.80/x - Step 3: Cross multiply
879,910.20x = 1,319,330.70 × 346,816.80 - Step 4: Simplify right side
879,910.20x = 457,566,051,515.76 - Step 5: Solve for x
x = 457,566,051,515.76/879,910.20 - Step 6: Final answer
x = 520,014.49
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1.5x scale
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.