Finding the Fourth Proportional to 632,390.18, 872,688.18 and 345,907.76
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Solution
The fourth proportional to 632,390.18, 872,688.18 and 345,907.76 is: 477,347.09
Step by Step Solution
- Step 1: Write the proportion equation
632,390.18 : 872,688.18 = 345,907.76 : x - Step 2: Convert to fraction form
632,390.18/872,688.18 = 345,907.76/x - Step 3: Cross multiply
632,390.18x = 872,688.18 × 345,907.76 - Step 4: Simplify right side
632,390.18x = 301,869,613,522.28 - Step 5: Solve for x
x = 301,869,613,522.28/632,390.18 - Step 6: Final answer
x = 477,347.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.