Finding the Fourth Proportional to 1,408,258.96, 1,943,397.80 and 763,678.96
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Solution
The fourth proportional to 1,408,258.96, 1,943,397.80 and 763,678.96 is: 1,053,877.20
Step by Step Solution
- Step 1: Write the proportion equation
1,408,258.96 : 1,943,397.80 = 763,678.96 : x - Step 2: Convert to fraction form
1,408,258.96/1,943,397.80 = 763,678.96/x - Step 3: Cross multiply
1,408,258.96x = 1,943,397.80 × 763,678.96 - Step 4: Simplify right side
1,408,258.96x = 1,484,132,010,770.29 - Step 5: Solve for x
x = 1,484,132,010,770.29/1,408,258.96 - Step 6: Final answer
x = 1,053,877.20
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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.