Finding the Fourth Proportional to 724,684.96, 1,000,157.50 and 438,207.08
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Solution
The fourth proportional to 724,684.96, 1,000,157.50 and 438,207.08 is: 604,781.56
Step by Step Solution
- Step 1: Write the proportion equation
724,684.96 : 1,000,157.50 = 438,207.08 : x - Step 2: Convert to fraction form
724,684.96/1,000,157.50 = 438,207.08/x - Step 3: Cross multiply
724,684.96x = 1,000,157.50 × 438,207.08 - Step 4: Simplify right side
724,684.96x = 438,276,097,615.10 - Step 5: Solve for x
x = 438,276,097,615.10/724,684.96 - Step 6: Final answer
x = 604,781.56
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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.