Finding the Fourth Proportional to 1,408,248.11, 1,943,382.90 and 763,668.12
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Solution
The fourth proportional to 1,408,248.11, 1,943,382.90 and 763,668.12 is: 1,053,862.28
Step by Step Solution
- Step 1: Write the proportion equation
1,408,248.11 : 1,943,382.90 = 763,668.12 : x - Step 2: Convert to fraction form
1,408,248.11/1,943,382.90 = 763,668.12/x - Step 3: Cross multiply
1,408,248.11x = 1,943,382.90 × 763,668.12 - Step 4: Simplify right side
1,408,248.11x = 1,484,099,565,683.15 - Step 5: Solve for x
x = 1,484,099,565,683.15/1,408,248.11 - Step 6: Final answer
x = 1,053,862.28
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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.