Finding the Fourth Proportional to 1,408,258.41, 1,943,397.63 and 763,678.44
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Solution
The fourth proportional to 1,408,258.41, 1,943,397.63 and 763,678.44 is: 1,053,876.80
Step by Step Solution
- Step 1: Write the proportion equation
1,408,258.41 : 1,943,397.63 = 763,678.44 : x - Step 2: Convert to fraction form
1,408,258.41/1,943,397.63 = 763,678.44/x - Step 3: Cross multiply
1,408,258.41x = 1,943,397.63 × 763,678.44 - Step 4: Simplify right side
1,408,258.41x = 1,484,130,870,378.10 - Step 5: Solve for x
x = 1,484,130,870,378.10/1,408,258.41 - Step 6: Final answer
x = 1,053,876.80
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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.