Finding the Fourth Proportional to 793,595.70, 1,190,393.55 and 420,347.70
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Solution
The fourth proportional to 793,595.70, 1,190,393.55 and 420,347.70 is: 630,521.55
Step by Step Solution
- Step 1: Write the proportion equation
793,595.70 : 1,190,393.55 = 420,347.70 : x - Step 2: Convert to fraction form
793,595.70/1,190,393.55 = 420,347.70/x - Step 3: Cross multiply
793,595.70x = 1,190,393.55 × 420,347.70 - Step 4: Simplify right side
793,595.70x = 500,379,190,837.34 - Step 5: Solve for x
x = 500,379,190,837.34/793,595.70 - Step 6: Final answer
x = 630,521.55
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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.