Finding the Fourth Proportional to 521,445.96, 719,605.62 and 340,273.80
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Solution
The fourth proportional to 521,445.96, 719,605.62 and 340,273.80 is: 469,584.50
Step by Step Solution
- Step 1: Write the proportion equation
521,445.96 : 719,605.62 = 340,273.80 : x - Step 2: Convert to fraction form
521,445.96/719,605.62 = 340,273.80/x - Step 3: Cross multiply
521,445.96x = 719,605.62 × 340,273.80 - Step 4: Simplify right side
521,445.96x = 244,862,938,818.76 - Step 5: Solve for x
x = 244,862,938,818.76/521,445.96 - Step 6: Final answer
x = 469,584.50
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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.