Finding the Fourth Proportional to 1,247,316.99, 1,872,027.06 and 489,690.54
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Solution
The fourth proportional to 1,247,316.99, 1,872,027.06 and 489,690.54 is: 734,948.65
Step by Step Solution
- Step 1: Write the proportion equation
1,247,316.99 : 1,872,027.06 = 489,690.54 : x - Step 2: Convert to fraction form
1,247,316.99/1,872,027.06 = 489,690.54/x - Step 3: Cross multiply
1,247,316.99x = 1,872,027.06 × 489,690.54 - Step 4: Simplify right side
1,247,316.99x = 916,713,941,906.01 - Step 5: Solve for x
x = 916,713,941,906.01/1,247,316.99 - Step 6: Final answer
x = 734,948.65
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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.