Finding the Fourth Proportional to 1,972,280.08, 2,721,788.99 and 1,089,226.50
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Solution
The fourth proportional to 1,972,280.08, 2,721,788.99 and 1,089,226.50 is: 1,503,156.03
Step by Step Solution
- Step 1: Write the proportion equation
1,972,280.08 : 2,721,788.99 = 1,089,226.50 : x - Step 2: Convert to fraction form
1,972,280.08/2,721,788.99 = 1,089,226.50/x - Step 3: Cross multiply
1,972,280.08x = 2,721,788.99 × 1,089,226.50 - Step 4: Simplify right side
1,972,280.08x = 2,964,644,689,870.10 - Step 5: Solve for x
x = 2,964,644,689,870.10/1,972,280.08 - Step 6: Final answer
x = 1,503,156.03
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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.