Finding the Fourth Proportional to 2,239,035.84, 3,089,900.16 and 1,220,438.40
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Solution
The fourth proportional to 2,239,035.84, 3,089,900.16 and 1,220,438.40 is: 1,684,221.73
Step by Step Solution
- Step 1: Write the proportion equation
2,239,035.84 : 3,089,900.16 = 1,220,438.40 : x - Step 2: Convert to fraction form
2,239,035.84/3,089,900.16 = 1,220,438.40/x - Step 3: Cross multiply
2,239,035.84x = 3,089,900.16 × 1,220,438.40 - Step 4: Simplify right side
2,239,035.84x = 3,771,032,807,430.14 - Step 5: Solve for x
x = 3,771,032,807,430.14/2,239,035.84 - Step 6: Final answer
x = 1,684,221.73
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1.5x scale
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.