Finding the Fourth Proportional to 3,939,456.40, 5,435,523.84 and 2,390,683.12
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Solution
The fourth proportional to 3,939,456.40, 5,435,523.84 and 2,390,683.12 is: 3,298,580.76
Step by Step Solution
- Step 1: Write the proportion equation
3,939,456.40 : 5,435,523.84 = 2,390,683.12 : x - Step 2: Convert to fraction form
3,939,456.40/5,435,523.84 = 2,390,683.12/x - Step 3: Cross multiply
3,939,456.40x = 5,435,523.84 × 2,390,683.12 - Step 4: Simplify right side
3,939,456.40x = 12,994,615,092,645.58 - Step 5: Solve for x
x = 12,994,615,092,645.58/3,939,456.40 - Step 6: Final answer
x = 3,298,580.76
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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.