Finding the Fourth Proportional to 1,117,408.76, 1,542,059.08 and 633,994.28
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Solution
The fourth proportional to 1,117,408.76, 1,542,059.08 and 633,994.28 is: 874,931.96
Step by Step Solution
- Step 1: Write the proportion equation
1,117,408.76 : 1,542,059.08 = 633,994.28 : x - Step 2: Convert to fraction form
1,117,408.76/1,542,059.08 = 633,994.28/x - Step 3: Cross multiply
1,117,408.76x = 1,542,059.08 × 633,994.28 - Step 4: Simplify right side
1,117,408.76x = 977,656,636,142.06 - Step 5: Solve for x
x = 977,656,636,142.06/1,117,408.76 - Step 6: Final answer
x = 874,931.96
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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.