Finding the Fourth Proportional to 785,659.96, 1,084,129.94 and 441,441.19
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Solution
The fourth proportional to 785,659.96, 1,084,129.94 and 441,441.19 is: 609,143.44
Step by Step Solution
- Step 1: Write the proportion equation
785,659.96 : 1,084,129.94 = 441,441.19 : x - Step 2: Convert to fraction form
785,659.96/1,084,129.94 = 441,441.19/x - Step 3: Cross multiply
785,659.96x = 1,084,129.94 × 441,441.19 - Step 4: Simplify right side
785,659.96x = 478,579,610,828.23 - Step 5: Solve for x
x = 478,579,610,828.23/785,659.96 - Step 6: Final answer
x = 609,143.44
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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.