Finding the Fourth Proportional to 3,578,386.40, 5,368,368.08 and 1,556,947.68
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Solution
The fourth proportional to 3,578,386.40, 5,368,368.08 and 1,556,947.68 is: 2,335,764.59
Step by Step Solution
- Step 1: Write the proportion equation
3,578,386.40 : 5,368,368.08 = 1,556,947.68 : x - Step 2: Convert to fraction form
3,578,386.40/5,368,368.08 = 1,556,947.68/x - Step 3: Cross multiply
3,578,386.40x = 5,368,368.08 × 1,556,947.68 - Step 4: Simplify right side
3,578,386.40x = 8,358,268,227,542.05 - Step 5: Solve for x
x = 8,358,268,227,542.05/3,578,386.40 - Step 6: Final answer
x = 2,335,764.59
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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.