Finding the Fourth Proportional to 1,139,438.80, 1,706,905.40 and 999,355.60
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Solution
The fourth proportional to 1,139,438.80, 1,706,905.40 and 999,355.60 is: 1,497,057.56
Step by Step Solution
- Step 1: Write the proportion equation
1,139,438.80 : 1,706,905.40 = 999,355.60 : x - Step 2: Convert to fraction form
1,139,438.80/1,706,905.40 = 999,355.60/x - Step 3: Cross multiply
1,139,438.80x = 1,706,905.40 × 999,355.60 - Step 4: Simplify right side
1,139,438.80x = 1,705,805,470,160.24 - Step 5: Solve for x
x = 1,705,805,470,160.24/1,139,438.80 - Step 6: Final answer
x = 1,497,057.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.