Finding the Fourth Proportional to 556,135.80, 834,203.70 and 319,939.80
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Solution
The fourth proportional to 556,135.80, 834,203.70 and 319,939.80 is: 479,909.70
Step by Step Solution
- Step 1: Write the proportion equation
556,135.80 : 834,203.70 = 319,939.80 : x - Step 2: Convert to fraction form
556,135.80/834,203.70 = 319,939.80/x - Step 3: Cross multiply
556,135.80x = 834,203.70 × 319,939.80 - Step 4: Simplify right side
556,135.80x = 266,894,964,937.26 - Step 5: Solve for x
x = 266,894,964,937.26/556,135.80 - Step 6: Final answer
x = 479,909.70
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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.