Finding the Fourth Proportional to 1,478,009.97, 2,217,015.36 and 679,963.14
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Solution
The fourth proportional to 1,478,009.97, 2,217,015.36 and 679,963.14 is: 1,019,944.90
Step by Step Solution
- Step 1: Write the proportion equation
1,478,009.97 : 2,217,015.36 = 679,963.14 : x - Step 2: Convert to fraction form
1,478,009.97/2,217,015.36 = 679,963.14/x - Step 3: Cross multiply
1,478,009.97x = 2,217,015.36 × 679,963.14 - Step 4: Simplify right side
1,478,009.97x = 1,507,488,725,613.83 - Step 5: Solve for x
x = 1,507,488,725,613.83/1,478,009.97 - Step 6: Final answer
x = 1,019,944.90
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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.