Finding the Fourth Proportional to 553,393.80, 830,090.70 and 413,425.80
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Solution
The fourth proportional to 553,393.80, 830,090.70 and 413,425.80 is: 620,138.70
Step by Step Solution
- Step 1: Write the proportion equation
553,393.80 : 830,090.70 = 413,425.80 : x - Step 2: Convert to fraction form
553,393.80/830,090.70 = 413,425.80/x - Step 3: Cross multiply
553,393.80x = 830,090.70 × 413,425.80 - Step 4: Simplify right side
553,393.80x = 343,180,911,720.06 - Step 5: Solve for x
x = 343,180,911,720.06/553,393.80 - Step 6: Final answer
x = 620,138.70
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Similar ratio
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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.