Finding the Fourth Proportional to 3,938,306.04, 5,435,873.58 and 2,565,071.76
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Solution
The fourth proportional to 3,938,306.04, 5,435,873.58 and 2,565,071.76 is: 3,540,457.67
Step by Step Solution
- Step 1: Write the proportion equation
3,938,306.04 : 5,435,873.58 = 2,565,071.76 : x - Step 2: Convert to fraction form
3,938,306.04/5,435,873.58 = 2,565,071.76/x - Step 3: Cross multiply
3,938,306.04x = 5,435,873.58 × 2,565,071.76 - Step 4: Simplify right side
3,938,306.04x = 13,943,405,810,988.10 - Step 5: Solve for x
x = 13,943,405,810,988.10/3,938,306.04 - Step 6: Final answer
x = 3,540,457.67
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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.