Finding the Fourth Proportional to 1,478,734.29, 2,207,404.47 and 1,299,372.95
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Solution
The fourth proportional to 1,478,734.29, 2,207,404.47 and 1,299,372.95 is: 1,939,659.94
Step by Step Solution
- Step 1: Write the proportion equation
1,478,734.29 : 2,207,404.47 = 1,299,372.95 : x - Step 2: Convert to fraction form
1,478,734.29/2,207,404.47 = 1,299,372.95/x - Step 3: Cross multiply
1,478,734.29x = 2,207,404.47 × 1,299,372.95 - Step 4: Simplify right side
1,478,734.29x = 2,868,241,658,027.09 - Step 5: Solve for x
x = 2,868,241,658,027.09/1,478,734.29 - Step 6: Final answer
x = 1,939,659.94
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.