Finding the Fourth Proportional to 1,590,855.40, 2,195,426.24 and 865,749.07
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Solution
The fourth proportional to 1,590,855.40, 2,195,426.24 and 865,749.07 is: 1,194,758.63
Step by Step Solution
- Step 1: Write the proportion equation
1,590,855.40 : 2,195,426.24 = 865,749.07 : x - Step 2: Convert to fraction form
1,590,855.40/2,195,426.24 = 865,749.07/x - Step 3: Cross multiply
1,590,855.40x = 2,195,426.24 × 865,749.07 - Step 4: Simplify right side
1,590,855.40x = 1,900,688,219,716.26 - Step 5: Solve for x
x = 1,900,688,219,716.26/1,590,855.40 - Step 6: Final answer
x = 1,194,758.63
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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.