Finding the Fourth Proportional to 1,170,539.02, 1,615,515.33 and 687,368.62
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Solution
The fourth proportional to 1,170,539.02, 1,615,515.33 and 687,368.62 is: 948,669.39
Step by Step Solution
- Step 1: Write the proportion equation
1,170,539.02 : 1,615,515.33 = 687,368.62 : x - Step 2: Convert to fraction form
1,170,539.02/1,615,515.33 = 687,368.62/x - Step 3: Cross multiply
1,170,539.02x = 1,615,515.33 × 687,368.62 - Step 4: Simplify right side
1,170,539.02x = 1,110,454,542,970.94 - Step 5: Solve for x
x = 1,110,454,542,970.94/1,170,539.02 - Step 6: Final answer
x = 948,669.39
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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.