Finding the Fourth Proportional to 926,135.70, 1,389,203.55 and 453,743.70
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Solution
The fourth proportional to 926,135.70, 1,389,203.55 and 453,743.70 is: 680,615.55
Step by Step Solution
- Step 1: Write the proportion equation
926,135.70 : 1,389,203.55 = 453,743.70 : x - Step 2: Convert to fraction form
926,135.70/1,389,203.55 = 453,743.70/x - Step 3: Cross multiply
926,135.70x = 1,389,203.55 × 453,743.70 - Step 4: Simplify right side
926,135.70x = 630,342,358,830.14 - Step 5: Solve for x
x = 630,342,358,830.14/926,135.70 - Step 6: Final answer
x = 680,615.55
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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.