Finding the Fourth Proportional to 938,457.23, 1,407,160.96 and 307,318.19
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Solution
The fourth proportional to 938,457.23, 1,407,160.96 and 307,318.19 is: 460,805.39
Step by Step Solution
- Step 1: Write the proportion equation
938,457.23 : 1,407,160.96 = 307,318.19 : x - Step 2: Convert to fraction form
938,457.23/1,407,160.96 = 307,318.19/x - Step 3: Cross multiply
938,457.23x = 1,407,160.96 × 307,318.19 - Step 4: Simplify right side
938,457.23x = 432,446,151,461.76 - Step 5: Solve for x
x = 432,446,151,461.76/938,457.23 - Step 6: Final answer
x = 460,805.39
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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.