Finding the Fourth Proportional to 1,395,887.18, 1,925,833.76 and 912,735.14
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Solution
The fourth proportional to 1,395,887.18, 1,925,833.76 and 912,735.14 is: 1,259,253.73
Step by Step Solution
- Step 1: Write the proportion equation
1,395,887.18 : 1,925,833.76 = 912,735.14 : x - Step 2: Convert to fraction form
1,395,887.18/1,925,833.76 = 912,735.14/x - Step 3: Cross multiply
1,395,887.18x = 1,925,833.76 × 912,735.14 - Step 4: Simplify right side
1,395,887.18x = 1,757,776,141,986.65 - Step 5: Solve for x
x = 1,757,776,141,986.65/1,395,887.18 - Step 6: Final answer
x = 1,259,253.73
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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.