Finding the Fourth Proportional to 1,368,497.76, 1,888,479.12 and 748,317.36
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Solution
The fourth proportional to 1,368,497.76, 1,888,479.12 and 748,317.36 is: 1,032,651.83
Step by Step Solution
- Step 1: Write the proportion equation
1,368,497.76 : 1,888,479.12 = 748,317.36 : x - Step 2: Convert to fraction form
1,368,497.76/1,888,479.12 = 748,317.36/x - Step 3: Cross multiply
1,368,497.76x = 1,888,479.12 × 748,317.36 - Step 4: Simplify right side
1,368,497.76x = 1,413,181,709,493.52 - Step 5: Solve for x
x = 1,413,181,709,493.52/1,368,497.76 - Step 6: Final answer
x = 1,032,651.83
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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.