Finding the Fourth Proportional to 2,868,386.76, 3,958,302.05 and 1,628,228.66
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Solution
The fourth proportional to 2,868,386.76, 3,958,302.05 and 1,628,228.66 is: 2,246,914.86
Step by Step Solution
- Step 1: Write the proportion equation
2,868,386.76 : 3,958,302.05 = 1,628,228.66 : x - Step 2: Convert to fraction form
2,868,386.76/3,958,302.05 = 1,628,228.66/x - Step 3: Cross multiply
2,868,386.76x = 3,958,302.05 × 1,628,228.66 - Step 4: Simplify right side
2,868,386.76x = 6,445,020,842,746.75 - Step 5: Solve for x
x = 6,445,020,842,746.75/2,868,386.76 - Step 6: Final answer
x = 2,246,914.86
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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.